FCC ID: 2AR82-SKIWB921AU1 IEEE 802.11b/g/n/a/ac/ax 2T2R USB WiFi Module Integrated BT2.1+EDR/4.2/5.2

FCC Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Caution: The user is cautioned that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. If power exceeds the limit and the distanceOver 20cm distance in actual use between the device and user is compliant with the requirement FCC RF Radiation Exposure Statement:

The modular can be installed or integrated in mobile or fix devices only. This modular cannot be installed in any portable device, for example, USB dongle like transmitters is forbidden. This modular complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This modular must be installed and operated with a minimum distance of 20 cm between the radiator and user body. The device must be professionally installed The intended use is generally not for the general public.It is generally for industry/commercial use. The connector is within the transmitter enclosure and can only be accessed by disassembly of the transmitter that is not normally required. the user has no access to the connector. Installation must be controlled. Installation requires special training Frequency (MHz) Antenna Type Antenna Gain (dBi) 2400-2500 External Antenna 5100-5900 External Antenna Zhongshan B&T, model: AG-011320-0679 MAX gain: 3.0dBi Shenzhen KTC, model: 3D0504BK07-001 MAX gain3.5dBi Shenzhen KTC, model: SLK-KG-B3DBS-SMA(P) MAX gain3.5dBi Shenzhen KTC, model: A100-0062 MAX gain3.5dBi Guangzhou Shienthalpy Technology Co., Ltd. model: SH-230317-0001 Max gain: 3.08dBi Shenzhen KTC model: 3D0504BK07-001 MAX gain: 4.5dBi Shenzhen KTC model: SLK-KG-B3DBS-SMA(P) MAX gain5.0dBi Shenzhen KTC model: SLK-KG-B3DBS-SMA(P) MAX gain3.3dBi Shenzhen KTC model: A100-0062 MAX gain5.0dBi Guangzhou Shienthalpy Technology Co., Ltd. model: SH-230317-0001 Max gain: 4.39dBi If the FCC identification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains Transmitter Module FCC ID: 2AR82-SKIWB921AU1 Or Contains FCC ID:

2AR82-SKIWB921AU1 When the module is installed inside another device, the user manual of this device must contain below warning statements:

1. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and

(2) This device must accept any interference received, including interference that may cause undesired operation. 2. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The devices must be installed and used in strict accordance with the manufacturer's instructions as described in the user documentation that comes with the product. The host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. The final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed. The end user manual shall include all required regulatory information/warning as shown in this manual, include:

This product must be installed and operated with a minimum distance of 20 cm between the radiator and user body. Canada Statement This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canadas licence-exempt RSS(s). Operation is subject to the following two conditions:

(1) This device may not cause interference.

(2) This device must accept any interference, including interference that may cause undesired operation of the device. L'metteur/rcepteur exempt de licence contenu dans le prsent appareil est conforme aux CNR d'Innovation, Sciences et Dveloppement conomique Canada applicables aux appareils radio exempts de licence. L'exploitation est autorise aux deux conditions suivantes :

1) L'appareil ne doit pas produire de brouillage;

2) L'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement. Please notice that if the ISED certification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains IC:

24728-SKIWB921AU1 any similar wording that expresses the same meaning may be used. l'appareil hte doit porter une tiquette donnant le numro de certification du module d'Industrie Canada, prc d des mots Contient un module d'mission , du mot IC: 24728-SKIWB921AU1 ou d'une formulation similaire exprimant le mme sens, comme suit The device meets the exemption from the routine evaluation limits in section 2.5 of RSS 102 and compliance with RSS-102 RF exposure, users can obtain Canadian information on RF exposure and compliance. Le dispositif rencontre l'exemption des limites courantes d'valuation dans la section 2.5 de RSS 102 etla conformit l'exposition de RSS-102 rf, utilisateurs peut obtenir l'information canadienne surl'exposition et la conformit de rf. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This equipment should be installed and operated with a minimum distance of 20 centimeters between the radiator and your body. Cet metteur ne doit pas tre Co-plac ou ne fonctionnant en mme temps qu'aucune autre antenne oumetteur. Cet quipement devrait tre install et actionn avec une distance minimum de 20 centimtres entre le radiateur et votre corps. This radio transmitter 24728-SKIWB921AU1 has been approved by Innovation, Science and Economic Development Canada to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device. Le prsent metteur radio 24728-SKIWB921AU1 a t approuv par Innovation, Sciences et Dveloppement conomique Canada pour fonctionner avec les types d'antenne numrs ci-dessous et ayant un gain admissible maximal. Les types d'antenne non inclus dans cette liste, et dont le gain est suprieur au gain maximal indiqu pour tout type figurant sur la liste, sont strictement interdits pour l'exploitation de l'metteur. The concrete contents to check are the following three points. 1) Should be installed so that the end user cannot modify the antenna;

2) Feed line should be designed in 50ohm Fine tuning of return loss etc. can be performed using a matching network. Le contenu concret vrifier sont les trois points suivants. 1) doivent tre installs de faon que l'utilisateur final ne peut pas modifier l'antenne 2) La ligne dalimentation doit tre conue en 50ohm Le rglage prcis de la perte de rendement, etc. peut tre effectu en utilisant un rseau correspondant. Frequency (MHz) frquences Antenna Type types d'antenne Antenna Gain (dBi) Gain maximal d'antenne 2400-2500 External Antenna 5100-5900 External Antenna Zhongshan B&T, model: AG-011320-0679 MAX gain: 3.0dBi Shenzhen KTC, model: 3D0504BK07-001 MAX gain3.5dBi Shenzhen KTC, model: SLK-KG-B3DBS-

SMA(P) MAX gain3.5dBi Shenzhen KTC, model: A100-0062 MAX gain3.5dBi Guangzhou Shienthalpy Technology Co., Ltd. model: SH-230317-0001 Max gain: 3.08dBi Shenzhen KTC model: 3D0504BK07-001 MAX gain: 4.5dBi Shenzhen KTC model: SLK-KG-B3DBS-

SMA(P) MAX gain5.0dBi Shenzhen KTC model: SLK-KG-B3DBS-

SMA(P) MAX gain3.3dBi Shenzhen KTC model: A100-0062 MAX gain5.0dBi Guangzhou Shienthalpy Technology Co., Ltd. model: SH-230317-0001 Max gain: 4.39dBi Notice to OEM integrator Must use the device only in host devices that meet the FCC/ISED RF exposure category of mobile, which means the device is installed and used at distances of at least 20cm from persons. The end user manual shall include FCC Part 15 /ISED RSS GEN compliance statements related to the transmitter as show in this manual. Host manufacturer is responsible for compliance of the host system with module installed with all other applicable requirements for the system such as Part 15 B, ICES 003. Host manufacturer is strongly recommended to confirm compliance with FCC/ISED requirements for the transmitter when the module is installed in the host. Must have on the host device a label showing Contains FCC ID: 2AR82-SKIWB921AU1IC: 24728-SKIWB921AU1 l'hte doit utiliser l'instrument uniquement dans des dispositifs qui rpondent la fcc / (catgorie d'exposition rf mobile, ce qui signifie le dispositif est install et utilis une distance d'au moins 20 cm de personnes. le manuel de l'utilisateur final doit inclure la partie 15 / (fac rss gen dclarations de conformit relatives l'metteur que de montrer dans ce manuel. le fabricant est responsable de la conformit de l'hte, le systme d'accueil avec le module install avec toutes les autres exigences applicables du systme comme la partie 15 b, ices - 003. accueillir le fabricant est fortement recommand de confirmer la conformit avec les exigences de la fcc /

(metteur lorsque le module est install dans l'hte. le dispositif d'accueil doivent avoir une tiquette indiquant contient FCC ID:2AR82-SKIWB921AU1IC:

24728-SKIWB921AU1 The modular transmitter is only FCC authorized for the specific rule parts (Part 15.247 and Part 15.407) listed on the grant, and that the host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. If the grantee markets their product as being Part 15 Subpart B compliant (when it also contains unintentional-radiator digital circuity), the final host product still requires Part 15 Subpart B or Part 18 etc. compliance testing with the modular transmitter installed.

FCC Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Caution: The user is cautioned that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. If power exceeds the limit and the distanceOver 20cm distance in actual use between the device and user is compliant with the requirement FCC RF Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and any part of your body. The device must be professionally installed The intended use is generally not for the general public.It is generally for industry/commercial use. The connector is within the transmitter enclosure and can only be accessed by disassembly of the transmitter that is not normally required. the user has no access to the connector. Installation must be controlled. Installation requires special training Canada Statement This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canadas licence-exempt RSS(s). Operation is subject to the following two conditions:

(1) This device may not cause interference.

(2) This device must accept any interference, including interference that may cause undesired operation of the device. L'metteur/rcepteur exempt de licence contenu dans le prsent appareil est conforme aux CNR d'Innovation, Sciences et Dveloppement conomique Canada applicables aux appareils radio exempts de licence. L'exploitation est autorise aux deux conditions suivantes :

1)L'appareil ne doit pas produire de brouillage;

2)L'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement. Please notice that if the ISED certification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the the following: Contains IC:

enclosed module. This exterior label can use wording such as 24728-SKIWB921AU1 any similar wording that expresses the same meaning may be used. l'appareil hte doit porter une tiquette donnant le numro de certification du module d'Industrie Canada, prc d des mots Contient un module d'mission , du mot IC: 24728-SKIWB921AU1 ou d'une formulation similaire exprimant le mme sens, comme suit The device meets the exemption from the routine evaluation limits in section 2.5 of RSS 102 and compliance with RSS-102 RF exposure, users can obtain Canadian information on RF exposure and compliance. Le dispositif rencontre l'exemption des limites courantes d'valuation dans la section 2.5 de RSS 102 etla conformit l'exposition de RSS-102 rf, utilisateurs peut obtenir l'information canadienne surl'exposition et la conformit de rf. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This equipment should be installed and operated with a minimum distance of 20 centimeters between the radiator and your body. Cet metteur ne doit pas tre Co-plac ou ne fonctionnant en mme temps qu'aucune autre antenne oumetteur. Cet quipement devrait tre install et actionn avec une distance minimum de 20 centimtres entre le radiateur et votre corps. This radio transmitter 24728-SKIWB921AU1 has been approved by Innovation, Science and Economic Development Canada to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device. Le prsent metteur radio 24728-SKIWB921AU1 a t approuv par Innovation, Sciences et Dveloppement conomique Canada pour fonctionner avec les types d'antenne numrs ci-dessous et ayant un gain admissible maximal. Les types d'antenne non inclus dans cette liste, et dont le gain est suprieur au gain maximal indiqu pour tout type figurant sur la liste, sont strictement interdits pour l'exploitation de l'metteur. The concrete contents to check are the following three points.

) Must use a PCB antenna such as WA-M-LB-02-164 with gain not exceeding 6.76dBi

) Should be installed so that the end user cannot modify the antenna;

) Feed line should be designed in 50ohm Fine tuning of return loss etc. can be performed using a matching network. Le contenu concret vrifier sont les trois points suivants.

) doit utiliser une antenne comme WA-M-LB-02-164 avec pifa gain n'excdant pas 6.76 dbi

) doivent tre installs de faon que l'utilisateur final ne peut pas modifier l'antenne

) La ligne dalimentation doit tre conue en 50ohm Le rglage prcis de la perte de rendement, etc. peut tre effectu en utilisant un rseau correspondant. Frequency (MHz) frquences Antenna Type types d'antenne Antenna Gain (dBi) Gain maximal d'antenne 2400-2500 External Antenna 5100-5900 External Antenna BT Antenna MAX: 3.94dBi WF1 Antenna MAX4.94dBi WF2 Antenna MAX3.7dBi BT Antenna MAX: 6.76dBi WF1 Antenna MAX4.88dBi WF2 Antenna MAX5.45dBi Notice to OEM integrator Must use the device only in host devices that meet the FCC/ISED RF exposure category of mobile, which means the device is installed and used at distances of at least 20cm from persons. The end user manual shall include FCC Part 15 /ISED RSS GEN compliance statements related to the transmitter as show in this manual. Host manufacturer is responsible for compliance of the host system with module installed with all other applicable requirements for the system such as Part 15 B, ICES 003. Host manufacturer is strongly recommended to confirm compliance with FCC/ISED requirements for the transmitter when the module is installed in the host. Must have on the host device a label showing Contains FCC ID: 2AR82-SKIWB921AU1IC: 24728-SKIWB921AU1 l'hte doit utiliser l'instrument uniquement dans des dispositifs qui rpondent la fcc / (catgorie d'exposition rf mobile, ce qui signifie le dispositif est install et utilis une distance d'au moins 20 cm de personnes. le manuel de l'utilisateur final doit inclure la partie 15 / (fac rss gen dclarations de conformit relatives l'metteur que de montrer dans ce manuel. le fabricant est responsable de la conformit de l'hte, le systme d'accueil avec le module install avec toutes les autres exigences applicables du systme comme la partie 15 b, ices - 003. accueillir le fabricant est fortement recommand de confirmer la conformit avec les exigences de la fcc /

(metteur lorsque le module est install dans l'hte. le dispositif d'accueil doivent avoir une tiquette indiquant contient FCC ID:2AR82-SKIWB921AU1IC:

24728-SKIWB921AU1 The modular transmitter is only FCC authorized for the specific rule parts (Part 15.247 and Part 15.407) listed on the grant, and that the host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. If the grantee markets their product as being Part 15 Subpart B compliant (when it also contains unintentional-radiator digital circuity), the final host product still requires Part 15 Subpart B or Part 18 etc. compliance testing with the modular transmitter installed.

SKILWB921AU.1 MACXXXXXXXXXXXX ICHOHHK-HKKXHHHAKK ECC ID:XXXXX-XXXXXXXXXKX CEMIIT ID:XXXXXXXXXXXKXXK FURST ARRAS) Guangzhou Shikun Electronics Co, Ltd ele]

[al SKI.WB921AU.1 MAC:XXXXXXXXXXXX 1C:24728-SKIWB921AU1 FCC ID:2AR82-SKIWB921AU1 CMIIT:XXXXXXXXXXXXXXX PREFERS BR ZA) Guangzhou Shikun Electronics Co., Ltd

Class II permissive change letter We, _____Guangzhou Shikun Electronics Co., Ltd. ________ request for C2PC for product:

___Module, model name__ SKI.WB921AU.1_. Product code: _SKIWB921AU1_____ Description of product as marketed: __SKIWB921AU1____ Certification number: FCC ID: _2AR82-SKIWB921AU1_____ Grantee date: __2022-08-30___ IC: 24728-SKIWB921AU1 The changes are below:

1. Adding hotspot function and illustration : When installed in the host product, the radio can support hotspot features and operate as a master device only working at WiFi 2.4GHz (2412MHz-2462MHz) and WIFI 5GHz (5150MHz-5250MHz, 5725MHz-5850MHz). 2. Adding antenna SH-230317-0001(Gain: 3.08dBi) All the changes do not influence the RF specification. Signature Name: _Bing Yi_____ Position: __Manager____ Company Name: ___Guangzhou Shikun Electronics Co., Ltd.___ Tel: _ 020-82086168 _____ E-Mail: ___yibing@cvte.com___

Guangzhou Shikun Electronics Co., Ltd Covered Equipment Certification Attestation Letter DATE Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: 2AR82-SKIWB921AU1 Guangzhou Shikun Electronics Co., Ltd (the applicant) certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not covered equipment. Guangzhou Shikun Electronics Co., Ltd (the applicant) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing covered equipment. Signed:

Printed name: Bing Yi Title: Manager Company Name: Guangzhou Shikun Electronics Co., Ltd Date: 2023-06-13

Guangzhou Shikun Electronics Co., Ltd. U.S. Agent Designation for Service of Process -

Certification Attestation Letter 3/30/2023 Nemko North America, Inc. 303 River Road Ottawa K1V 1H2 Canada ATTN.: Reviewing Engineer FCC ID: 2AR82-SKIWB921AU1 Per section 2.911(d)(7) of the FCC rules, Guangzhou Shikun Electronics Co., Ltd. (the applicant) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process:

Company Name: SMART Technologies (Seattle) Inc. Physical U.S. Company Address: 2401 4th Ave, 3rd Floor Agent name: Sean MacKellar Agent Email Address: SeanMacKellar@smarttech.com The above contact person accepts the obligation for service of process. The applicant accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Applicant Signed:

Agent Signed (if different to Applicant):

Signed:

Printed name: Bing Yi Title: Manager Company Name: Guangzhou Shikun Electronics Co., Ltd. Company Name: SMART Technologies (Seattle) Inc. Date: 2023-3-23 Printed name: Sean MacKellar Title: Sr. Regulatory Specialist Signed:

Date: 3/30/2023

* the applicant must designate a contact located in the United States for purposes of acting as the applicants agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. FRN: 0033599457

Guangzhou Shikun Electronics Co., Ltd Declaration Letter We, Guangzhou Shikun Electronics Co., Ltd. Apply for Class II permissive change for Product: IEEE 802.11b/g/n/a/ac/ax 2T2R USB WiFi Module Integrated BT 2.1+EDR/4.2/5.2 Model: SKI.WB921AU.1 FCC ID: 2AR82-SKIWB921AU1 IC: 24728-SKIWB921AU1 The change is apply for another four kind of antenna for WIFI module, there is only change in antenna.No other revision. Frequency (MHz) Antenna Type Antenna Gain (dBi) 2400-2500 External Antenna MAX gain: 3.0dBi Zhongshan B&T, model: AG-011320-0679 Shenzhen KTC, model: 3D0504BK07-001 MAX gain3.5dBi Shenzhen KTC, model: SLK-KG-B3DBS-SMA(P) MAX gain3.5dBi Shenzhen KTC, model: A100-0062 MAX gain3.5dBi Shenzhen B&T, model: AG-011320-0679 5100-5900 External Antenna MAX gain: 4.5dBi Shenzhen KTC, model: 3D0504BK07-001 MAX gain5.0dBi Shenzhen KTC, model: SLK-KG-B3DBS-SMA(P) MAX gain3.3dBi Shenzhen KTC, model: A100-0062 MAX gain5.0dBi Bing Yi Manager

Guangzhou Shikun Electronics Co., Ltd Agent Authorization Company: Guangzhou Shikun Electronics Co., Ltd Address: NO.6 Liankun Road, Huangpu District, Guangzhou, China Product Name: IEEE 802.11b/g/n/a/ac/ax 2T2R USB WiFi Module Integrated BT 2.1+EDR/4.2/5.2 Model Number(s): SKI.WB921AU.1 Product Description:

The model SKI.WB921AU.1 is IEEE 802.11b/g/n/a/ac/ax 2T2R USB WiFi Module Integrated BT 2.1+EDR/4.2/5.2. We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Date: 2021/03/29 Signature:

Name:

Bing Yi Title:

Certification Engineer Company: Guangzhou Shikun Electronics Co., Ltd

Guangzhou Shikun Electronics Co., Ltd Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2021/5/25 Subject; Modular Transmitter Application Company name: Guangzhou Shikun Electronics Co., Ltd FCC ID: 2AR82-SKIWB921AU1 Dear Sir/Madam, This letter includes the FCC application requirements for Modular Transmitter Approval Request for;-

FCC KDB 996369 D01 Module Certification Guide v02; and FCC KDB 996369 D03 OEM Manual v01 In accordance with 47CFR 15.212 Modular Transmitters and KDB 996369 D01 Module Equip Auth Guide v02. FCC ID 2AR82-SKIWB921AU1 has been examined against the following requirements. Requirement per 15.212 and KDB 996369 D01 The radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must be on the module assembly. The module must have buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal. The module must contain power supply regulation on the module. The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b). The module must demonstrate compliance in a stand-alone configuration. The module must be labeled with its permanently affixed FCC ID label, or use an electronic display (see KDB Publication 784748). The module must comply with all specific rules applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. Explanation from Grantee

(do not write yes/no, but explain why product complies/how it is achieved) Yes, the module has a shield cover. The module is installed on the development board. The development board is connected to the computer through USB cable. The computer makes the module enter the test mode through software and instructions. Yes, the module contains power supply regulation on the module. Yes, the module contains a unique antenna connector. Yes, it is fulfilled. The modular transmitter has PCB antenna. Yes, the module is labeled with its permanently affixed FCC ID label. Yes, it is fulfilled. The modular transmitter was tested in a stand-alone configuration. FCC Modular Approval Request Rev 3.0 Guangzhou Shikun Electronics Co., Ltd The module must comply with RF exposure requirements Yes, it is fulfilled. The label is shown on the modular transmitter. Integration Instructions for host product manufacturers The following items are submitted in support of application for Modular Transmitter FCC ID as noted above as required by the FCC KDB 996369 D03 OEM Manual v01. These items are provided as integration instructions for host product manufacturers (e.g., OEM instruction manual) to use when integrating a module in a host product. Any requirements that are not applicable to the Module are as indicated below. Summary of requirements and Checklist. Refer to the KDB for description of the complete requirements;

User Manual Page Number KDB reference Ref Sect 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 List of applicable FCC rules Summarize the specific operational use conditions Limited module procedures Trace antenna designs RF exposure considerations Antennas Label and compliance information Information on test modes and additional testing requirements Additional testing, Part 15 Subpart B disclaimer Requirements of KDB 996369 D03 2.10 Name: Bing Yi Date: 2021/5/25 Title: Certification Engineer Signature of applicant FCC Modular Approval Request Rev 3.0

Guangzhou Shikun Electronics Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2021/03/29 Subject; Request for Confidentiality FCC ID: 2AR82-SKIWB921AU1 To Whom It May Concern, Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description SDR software and security information In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR 2.803 and the importation rules in Title 47 CFR 2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s);

External Photos Test Setup Photos Internal Photos User Manual OR For 45 days, pursuant to Public Notice DA 04-1705. For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature:

Name: Bing Yi Title: Certification Engineer

Guangzhou Shikun Electronics Co., Ltd FCC Software Configuration Control Declaration Date: April 26, 2021 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Attn: OET Dept. Product/ Model Number: SKI.WB921AU.1 Regarding FCC Country Code Selection guidelines identified in KDB 594280. All applications for equipment authorization for transmitters that can have radio parameters, or other technical parameters, reported to the Commission set by software must have an attestation indicating that no third party will have software, or configuration control, to program the device out of compliance of the technical rules under which it has been certified. We declare that no third party will have software, or configuration control, to program the device out of compliance of the technical rules under which it has been certified. Name: Bing Yi Title: Certification Engineer Signature of applicant Date: 2021-04-26 FCC Software Configuration Control Declaration Rev1.1