FCC ID: 2AFZZ-MHCWBT1P-IB 2.4GHz WIFI+Bluetooth dual-mode module

The user manual of WIFIBluetooth module 1. The product description TheusercanachievewirelessconnectiontoWIFInetandBluetooth,throughthismodule 2. Basic parameters Feature Description Feature Description Model Product Name Major Chipset MHCWBT1PIB 2.4GHz WIFI+Bluetooth dualmode module RTL8723DS WLAN Standard IEEE 802.11b/g/n BT Standard BT2.1/4.2v4.2 BR/EDRv4.0 BLE WLAN Frequency Range 2.4GHz~2.4835GHz BT Frequency Range 2402MHz~2480MHz Spread Spectrum IEEE 802.11b: DSSS (Direct Sequence Spread Spectrum) IEEE802.11g/n: OFDM (Orthogonal Frequency Division Multiplexing) Modulation Method DBPSK/DQPSK/CCK(DSSS)BPSK/QPSK/16QAM/64QAM(OFDM) Data Transfer Rate 11b:1,2,5.5, 11Mbps 11g: 6,9,12,18,24,36,48,54Mbps 11n:HT20MCS0~HT20MCS7 HT40MCS0~HT40MCS7 Antenna Reference MHCWBT1PIB:WIFI/BT external ANT Interface SDIO1.1/2.0,HSUART Supply Voltage 3.3V0.3V Dimension 18mm*20mm*2.5mm Operating Temperature 0C to 70C Storage Temperature 40C to 125C RF output power Band Limited Power(dBm) BT WLAN 2402MHz2480MHz 2412MHz2472MHz 020

<20 3. The display method of Model approved code In the factorythe model approve code is lasered on the shielding case. 4. 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. 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. Low Temperature Operation When the external temperature is lower than 0, the IC may be damaged to a certain extent, which will affect the operation of the module. Please ensure that the operation temperature meets the requirements. FCC ID: 2AFZZMHCWBT1PIB 5. Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment and it also complies with Part 15 of FCC RF Rules. This equipment should be installed and operated with minimum distance of 20 in (50cm)between the radiator and yourbody. This transmitter must not be colocated or operated in conjunction with any other antenna or transmitter CAUTION:

To comply with the limits of the Class B digital device pursuant to Part 15 of the FCC Rules, this device is compliant with Class B limits. All peripherals must be shielded and grounded. Operation with noncertified peripherals or nonshielded cables may results in interference to radio or reception MODIFICATION To assure continued compliance, Any changes or modifications not expressly approved by the grantee of this device could void the users authority to operate the device. 5. Radiation Exposure Statement This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance of 50 cm(8 in )between the radiator and your body NOTE To satisfy FCC exterior labeling requirements, the following text must be placed on the exterior of the end product Contains Transmitter module FCC ID: *******

To satisfy IESD exterior labeling requirements, the following text must be placed on the exterior of the end product " Contains Transmitter module IC: *******

Manufacturer: Xiaomi Communications Co.,Ltd. Address: #019,9th Floor, Building 6, 33 Xierqi Middle Road, Haidian District,Beijing, 100085 China A voltage stabilizing element or circuit is required on the power supplies to the module, and then the power supply is sent to the module This equipment may be operated in all European countries.

20.0+0. 20_ MODEL:MHCWBTIP-IB PN:TS00TO200615 MAC:FFFFFFFFFFFF CMIIT 1D:2021DP6734(N) FOC. 1D:2AFZZ-MHCWBT1P-IB tal) Ame on ode J ode oS

[els]

the

| | Sh ae Aa A Ix AN OR SAY ip o40 29

Xiaomi Communications Co.,Ltd. Address: #019,9" Floor, Building 6, 33 Xiergi Middle Road, Haidian D Beijing, 100085 China Tel: N/A Request of Confidentiality Federal Communications Commission Authorization and Evaluation Division Pursuant to Sections 0.457 and 0.459 of the Commissions Rules, the Applicant hereby requests confidential treatment of information accompanying of following product:

Product Name: 2.4GHz WIFI+Bluetooth dual-mode module Product Model :MHCWBT1P-IB FCC ID: 2AFZZ-MHCWBT1P-1B The following information should be held confidential All Schematics/block diagrams/BOM All Parts list for the above schematic diagram Operational description and technical overview of product The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Rule 0.457, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Hao Sheng ,Certification Manager shorshag Xiaomi Communications Co.,Ltd. Address: #019,9" Floor, Building 6, 33 Xiergi Middle Road, Haidian District, Beijing, 100085 China Tel: N/A

Xiaomi Communications Co.,Ltd. Address: #019,9" Floor, Building 6, 33 Xiergi Middle Road, Haidian District, Beijing, 100085 China Tel: N/A Authorization Letter FCC ID: 2AFZZ-MHCWBT1P-IB Date: November 5, 2021 To whom it may concern We, the undersigned, hereby authorize The State Radio monitoring_centerTestingCenter (SRTC) to act on our behalf, as our agent, in the following matters related to the FCC approval of our product:

Product Name: 2.4GHz WIFI+Bluetooth dual-mode module Product Model: MHCWBT1P-IB FCC ID: 2AFZZ-MHCWBT1P-IB

. n . Report submittal, related correspondence, the signing of all documents relatingto these matters, and any other lawful activity necessary to obtain such certification. Any act carried out by The State Radio_monitoring_center Testing Center (SRTC) within the scope of this authorization shall have the same effects as our own. This authorization shall expire 2 months from original date. If you have any question regarding the authorization, please dont hesitate to contact with me. Thank you incerely, Hao Sheng Sherghas Xiaomi Communications Co.,Ltd. Address: #019,9" Floor, Building 6, 33 Xiergi Middle Road, Haidian D Beijing, 100085 China Tel: N/A

lao Communications Co.,Ltd. Address: #019,9"" Floor, Building 6, 33 Xierqi Middle Road, Haidian District, Beijing, 100085 China Tel: N/A PHOENIX TESTLAB GmbH Date: 29 March 2021 Product Certification K6nigswinkel 10 D 32825 Blomberg Attn:Reviewing Engineer Subject:PART 15 UNLICENSED MODULAR TRANSMITTER APPROVAL To Whom It May Concern:

We, Xiao Communications Co.,Ltd.

, hereby requests for part 15 unlicensed modular transmitter approval of our device, described as follows:

Brand name:

Model name:

MHCWBT1P-IB FCC ID:

2AFZZ-

MHCWBT1P-IB In FCC Public Notice DA 00-1407 released June 26,2000 there are eight numbered requirements that our device complies with:

1. The modular transmitter must have its own shielding. Yes, it has a metal shielding. 2. The modular transmitter must have buffered modulation/data inputs Yes, it has a buffer for modulation and data input . The highly integrate single-chip is RTL8723DS. 3. The modular transmitter must have its own power supply regulation Yes, it has a power supply regulation for transmitter inside the chip. 4. The modular transmitter must comply with the antenna requirements of Section 15.203 and 15.204c Yes, the module is 2*2 MIMO of WiFO and WiF1.All WiFi antenna are pcb antennaon the module board by pcbtrace. This antenna can only be replaced by the manufacturer's professionals. If the user cannot replace it, he can apply for an independent module. /f the antenna is changed again in the future, we need to do additional certification 5. The modular transmitter must be tested in a stand-alone configuration Name: Sheng Job Tit Certificat Yes, it has been tested in a stand-alone configuration ,not inside another device . 6. The modular transmitter must be labelled with its own FCC ID number Yes, FCC ID: 2AFZZ-MHCWBT1P-IB 7. The modular transmitter must comply with any specific rule or operating requirements applicable to the transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. Yes, our module has complied the FCC spec and operating requirements . The manufacturer has corresponding module installation instructions. 8. The modular transmitter must comply with any applicable RF exposure requirements. Yes, our module has detailed application notes for users, installers and other interested parties to ensure that it comply with any applicable RF exposure requirements. Company name Xiao Communications Co., Ltd. Address:

#019,9"" Floor, Building 6,33 Xierqi Middle Road, Haidian District, Beijing, 100085,China Tel:N/A Yours sincerely, Signatory hag le: ion Manager