FCC ID: EF400233 Digital Transmitter

Authority to Act as Agent Date: 11/06/2023 TUV Rheinland of North America, Inc. 1279 Quarry Lane., Suite. A Pleasanton, CA 94566 To Whom It May Concern:

I appoint Nice North America LLC to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the FCC or Industry Canadas regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by TUV Rheinland Group, still resides with Nice North America LLC, 5919 Sea Otter Place STE 100, Carlsbad, California, United States. For TCB applications, We certify that we are not subject to denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Further, no party, as defined in 47 CFR 1.2002 (b), to the application is subject to denial of federal benefits, that includes FCC benefits. Agency Agreement Date: 11/06/2023 Agreement is valid for 12 months from the above date. Sincerely, ______________________ Signature Horsen Ma Sr.Manager Hardware Engineering of CIC Horsen.Ma@niceforyou.com 5919 Sea Otter Place Carlsbad, CA 92010 800.421.1587 niceforyou.com

KINGRF TECHNOLOGY CO., LTD. DA.00207.LM.2AS Antenna Specification 1. Application:

This application shall apply for antenna unit which shall be used such as automotive, conventional communications, smart home, etc.. 1. Electrical Specification:

Those specifications were specially defined for customers model, and all characteristics were measured under the models handset testing jig . 2-1. Frequency Band:

Frequency Band 915MHZ MHz 915 2-2. Impedance 50 ohm nominal 2-3. VSWR 2-3-1.Measurement frequency points and VSWR value Frequency Band(MHz) 2-3-2. Typical Value:

VSWR Maximum value 915 5.00 7 915 2.61 3.3 915 2.25 3.0 Used in conjunction with Cable NO Cable 60mm Cable 120mm Cable UNLESS OTHER SPECIFIED TOLERANCES ON X X.XX X.X HOLEDIA ANGLES SCALE DRAWN BY Lu DESIGNED BY: JIN TIAN UNITmm CHECKED BY: YS APPROVED BY: YS TITLEDA.0207.LM.2AS Antenna Specification KINGRF TECHNOLOGY CO., LTD. THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF KINGRF TECHNOLOGY CO.,LTD.AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION PAGE 1 SPEC REV. P0 8 OF KINGRF TECHNOLOGY CO., LTD. 2-3-3.ANTENNA CONNECTOR RP - SMA -Male( witch on pin) NO Cable 60mm Cable 2-3-4 Picture UNLESS OTHER SPECIFIED TOLERANCES ON X X.XX X.X HOLEDIA ANGLES SCALE DRAWN BY Lu DESIGNED BY: JIN TIAN UNITmm CHECKED BY: YS APPROVED BY: YS TITLEDA.0207.LM.2AS Antenna Specification KINGRF TECHNOLOGY CO., LTD. THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF KINGRF TECHNOLOGY CO.,LTD.AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION PAGE 2 SPEC REV. P0 8 OF KINGRF TECHNOLOGY CO., LTD. 120mm Cable UNLESS OTHER SPECIFIED TOLERANCES ON X X.XX X.X HOLEDIA ANGLES SCALE DRAWN BY Lu DESIGNED BY: JIN TIAN UNITmm CHECKED BY: YS APPROVED BY: YS TITLEDA.0207.LM.2AS Antenna Specification KINGRF TECHNOLOGY CO., LTD. THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF KINGRF TECHNOLOGY CO.,LTD.AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION PAGE 3 SPEC REV. P0 8 OF KINGRF TECHNOLOGY CO., LTD. 2-4. Efficiency and Gain 4-5.1 Measure method 1. Using a low loss coaxial cable to link a standard handset jig 2. Fixed this handset jig on chambers rotator plane 3. Linking jig into network analyzer port and using a probing horn antenna to collect data. 4. Using another standard gain horn antenna to calibrated those data 4-5.2 Chamber definition Far-Field Chamber DUT 4.38 m Std. Ant. Rotatory controller Port 1 Port 2 Vector Network Aanlyzer 1. An anechoic chamber (7mx4mx3m) which satisfied far-field condition was applied to avoid multi-path effect 2. The quite room region is 40cmx40cmx40cm at the center of rotator 3. The distance between DUT and standard antenna is 4.38 m 4. Probing antenna (9120D horn antenna) and standard gain horn antenna (BBHA9120 LPF 700MHz ~6GHz) UNLESS OTHER SPECIFIED TOLERANCES ON X X.XX X.X HOLEDIA ANGLES SCALE DRAWN BY Lu DESIGNED BY: JIN TIAN UNITmm CHECKED BY: YS APPROVED BY: YS TITLEDA.0207.LM.2AS Antenna Specification KINGRF TECHNOLOGY CO., LTD. THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF KINGRF TECHNOLOGY CO.,LTD.AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION PAGE 4 SPEC REV. P0 8 OF KINGRF TECHNOLOGY CO., LTD. 2-4-1 Efficiency and Gain NO Cable 60mm Cable Freq Effi Gain

(MHz)

(%) 910 911 912 913 914 915 916 917 918 919 920 49.56 51.15 52.29 53.11 53.69 54 54.18 54.84 54.6 54.84 55.26

(dBi)

-0.24 0.03 0.31 0.53 0.72 0.86 0.99 1.11 1.25 1.4 1.57 Freq Effi Gain

(MHz)

(dBi) 910 911 912 913 914 915 916 917 918 919 920 38.54 40.41 41.71 42.32 42.22 41.63 40.73 39.68 38.6 37.62 36.73 0.76 0.94 1.07 1.13 1.14 1.1 1.04 0.96 0.88 0.81 0.73 Freq Effi Gain

(MHz)

(dBi) 120mm Cable 910 911 912 913 914 915 916 917 918 919 920 64..07 65.46 66.06 65.78 64.77 63.31 61.56 59.66 57.91 56.36 54.99 1.74 1.79 1.82 1.82 1.79 1.73 1.65 1.57 1.5 1.44 1.39 UNLESS OTHER SPECIFIED TOLERANCES ON X X.XX X.X HOLEDIA ANGLES SCALE DRAWN BY Lu DESIGNED BY: JIN TIAN UNITmm CHECKED BY: YS APPROVED BY: YS TITLEDA.0207.LM.2AS Antenna Specification KINGRF TECHNOLOGY CO., LTD. THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF KINGRF TECHNOLOGY CO.,LTD.AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION PAGE 5 SPEC REV. P0 8 OF KINGRF TECHNOLOGY CO., LTD. 3. Mechanical Specification:

3-1. Mechanical Configuration (Unit: mm) The appearance of the antenna is according to drawing UNLESS OTHER SPECIFIED TOLERANCES ON X X.XX X.X HOLEDIA ANGLES SCALE DRAWN BY Lu DESIGNED BY: JIN TIAN UNITmm CHECKED BY: YS APPROVED BY: YS TITLEDA.0207.LM.2AS Antenna Specification KINGRF TECHNOLOGY CO., LTD. THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF KINGRF TECHNOLOGY CO.,LTD.AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION PAGE 6 SPEC REV. P0 8 OF KINGRF TECHNOLOGY CO., LTD. 3-2.Product Image UNLESS OTHER SPECIFIED TOLERANCES ON X X.XX X.X HOLEDIA ANGLES SCALE DRAWN BY Lu DESIGNED BY: JIN TIAN UNITmm CHECKED BY: YS APPROVED BY: YS TITLEDA.0207.LM.2AS Antenna Specification KINGRF TECHNOLOGY CO., LTD. THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF KINGRF TECHNOLOGY CO.,LTD.AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION PAGE 7 SPEC REV. P0 8 OF KINGRF TECHNOLOGY CO., LTD. 4 . xxx xxx

xxx XXXXX xx xx XXX PCS X X X 1. RP - SMA MALECONNETOR XX PCS PE 2. Xx PCS 3. : ab ROHS UNLESS OTHER SPECIFIED TOLERANCES ON X X.XX X.X HOLEDIA ANGLES SCALE DRAWN BY Lu DESIGNED BY: JIN TIAN UNITmm CHECKED BY: YS APPROVED BY: YS TITLEDA.0207.LM.2AS Antenna Specification KINGRF TECHNOLOGY CO., LTD. THIS DRAWINGS AND SPECIFICATIONS ARE THE PROPERTY OF KINGRF TECHNOLOGY CO.,LTD.AND SHALL NOT BE REPRODUCED OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATUS OR DEVICES WITHOUT PERMISSION PAGE 8 SPEC REV. P0 8 OF

Applicant as U.S. Agent Letter of Attestation Date: 11/06/2023 To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Attestation Statement Part 2.911(d)(7) filing FCC ID: EF400233 Nice North America LLC (the applicant) as required by section 2.911(d)(7), will also serve as the agent for service of process for the above referenced FCC ID. The applicant acknowledges that they will 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 administrative or judicial proceeding involving the equipment, whichever is later. The applicant further acknowledges their responsibility to inform the FCC whenever the agent information changes.

, California, United States Designated U.S. Agent from Applicant Company Company Name: Nice North America LLC Contact Person: Horsen Ma Address: 5919 Sea Otter Place STE 100, Carlsbad Tel.: +86755 2751 18888 ext 8106 Email: Horsen.Ma@niceforyou.com FCC FRN: 0006674840 Sincerely, ______________________ Signature Horsen Ma Sr. Manager, Hardware Engineering of CIC Horsen.Ma@niceforyou.com 5919 Sea Otter Place Carlsbad, CA 92010 800.421.1587 niceforyou.com

Date: 11/06/2023 Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Confidentiality Request for FCC ID: EF400233 Pursuant to FCC 47 CRF 0.457(d), the applicant requests that a part of the subject FCC/IC application be held confidential. Type of Confidentiality Requested Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Permanent Permanent Permanent Permanent Permanent Permanent Permanent Permanent Permanent Exhibit Block Diagrams External Photo Internal Photos ***

Operation Description/Theory of Operation Schematics Test Setup***

Tune-Up Procedure Users Manual***

Part List/ Antenna Gain Information Datasheet Nice North America LLC has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Permanent Confidentiality:

The applicant requests the exhibits listed above as permanently confidential be permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public.

(*** Exceptional case for Permanent Confidentiality for these Exhibits by PAG only). Short-Term Confidentiality:

The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of 180 days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Applicant is also aware that they are responsible to notify TUV Rheinland in the event information regarding the product or the product is made available to the public. TUV Rheinland will then release the documents listed above for public disclosure pursuant to FCC Public Notice DA 04-1705. Sincerely, ______________________ Signature Horsen Ma Sr.Manager, Hardware Engineering of CIC Horsen.Ma@niceforyou.com 5919 Sea Otter Place Carlsbad, CA 92010 800.421.1587 niceforyou.com

Attestation Statements Not Covered Entity Applicant To: Federal Communications Commission Date: 11/06/2023 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(ii) filing FCC ID: EF400233 Nice North America LLC (the applicant) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing covered equipment. Sincerely, ______________________ Signature Horsen Ma Sr.Manager, Hardware Engineering of CIC Horsen.Ma@niceforyou.com 5919 Sea Otter Place Carlsbad, CA 92010 800.421.1587 niceforyou.com

Attestation Statements Not Covered Equipment To: Federal Communications Commission Date: 11/06/2023 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) filing FCC ID: EF400233 Nice North America LLC (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. Sincerely, ______________________ Signature Horsen Ma Sr.Manager, Hardware Engineering of CIC Horsen.Ma@niceforyou.com 5919 Sea Otter Place Carlsbad, CA 92010 800.421.1587 niceforyou.com