2BCM9-SW80Smart Bracelet

Shenzhen Kunhong Intelligent Electronics Co., Ltd U.S. Agent Designation for Service of Process (Applicant and U.S. Agent are Separate Parties) TO: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA ATTENTION: FCC Certification – Section 2.911(d)(7) Information Designated U.S. Agent Company Name: Baihetian Innovative Solutions FRN: 0033401605 Contact Name: Kenneth Young Street Address: 6837 Chase Rd City/Province/Zip: Dearborn, MI 48126 Telephone No: 313-395-3113 Email: [email protected] This letter is to confirm that we (“the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. U.S. Agent Signature: Date: Sept 15, 2023 Signed by (Printed Name/Title): Kenneth Young / Manager The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company name: Shenzhen Kunhong Intelligent Electronics Co., Ltd Grantee Code: 2BCM9 FCC ID : 2BCM9-SW80 Contact Name: ZHANG JIAO Street Address: Whole Floor 301, 401, Building 35, Cuigang Industrial Area 5, Huaide Community, Fuyong Street, Bao’an District, Shenzhen, China Telephone No: 18676390461 Email: [email protected] Applicant Signature: Date: 2023-09-14 Signed by (Printed Name/Title): ZHANG JIAO /Manager

Shenzhen Kunhong Intelligent Electronics Co., Ltd 2023.09.18 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for FCC ID: 2BCM9-SW80 [Shenzhen Kunhong Intelligent 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. Sincerely, (Applicant signature) (Applicant printed name) ZHANG JIAO Shenzhen Kunhong Intelligent Electronics Co., Ltd 2023.09.18 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for FCC ID: 2BCM9-SW80 [Shenzhen Kunhong Intelligent 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. Sincerely, (Applicant signature) (Applicant printed name) ZHANG JIAO

Shenzhen Kunhong Intelligent Electronics Co., Ltd 2023.09.18 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen BCTC Testing Co., Ltd to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Client’s signature: Client’s name / title : ZHANG JIAO /Sales Director Contact information / address: Whole Floor 301, 401, Building 35, Cuigang Industrial Area 5, Huaide Community, Fuyong Street, Bao’an District, Shenzhen, China

Shenzhen Kunhong Intelligent Electronics Co., Ltd 2023.09.18 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: Smart Bracelet Trademark: N/A MODEL : BSH-SW80-001B FCC ID : 2BCM9-SW80 To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the - Block Diagram - Schematics - Operational Description required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, Client’s signature: Client’s name / title : ZHANG JIAO /Sales Director Contact information / address: Whole Floor 301, 401, Building 35, Cuigang Industrial Area 5, Huaide Community, Fuyong Street, Bao’an District, Shenzhen, China

External Photos

Size:10*5mm FCC ID: 2BCM9-SW80 Label location

Internal Photos Antenna

RF EXPOSURE EVALUATION METHOD FCC ID: 2BCM9-SW80 Applicable standard： In accordance with FCC 47 CFR part 2 (2.1093) this device has been defined as a portable device which is defined as a transmitting device designed to be used so that the radiating structure(s) of the device is/are within 20 centimeters of the body of the user. Portable devices must be evaluated using the specified in FCC 47 CFR part 2 (2.1093) and ANSI/IEEEC95.1-1992. and had been tested in accordance with the measurement methods and procedures specified in IEEE 1528-2003. Per FCC KDB 447498 D01 v06, the 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances s 50 mm are determined by: SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR,where f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. Mode Frequency (MHz) Conducted Power (dBm) Limit (dBm) Verdict GFSK 1Mbps 2402 -2.38 30 Pass GFSK 1Mbps 2440 -2.65 30 Pass GFSK 1Mbps 2480 -2.29 30 Pass GFSK 2Mbps 2402 -3.26 30 Pass GFSK 2Mbps 2440 -3.52 30 Pass GFSK 12Mbps 2480 -3.18 30 Pass max possible output power (PK,conducted)：-2±1dBm 1.48dBi logarithmic terms convert to numeric result is nearly 1.406 -1dBm=0.79mW 2402MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 0.79/5*√2.402=0.25≤3.0 2440MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 0.79/5*√2.44=0.25≤3.0 2480MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 0.79/5*√2.48=0.25≤3.0 Conclusion: 1. [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] * [√f(GHz)] < 3.0. 2. SAR Test Exclusion Thresholds is 3.0 for separation distance 5mm. Therefore, SAR test is not required.

SHENZHEN 客户  : 品 名 规 格 DESCRIPTION: 料号 PART NO.： 客 户 料 号 CUS PART NO.： 日期 D A T E ： 深超呈样签章 工 程 ENGINEERING DEPARTMENT 品 保 Q C DEPARTMENT 业 务 SALES DEPARTMENT 客户承认签章 工 程 ENGINEERING DEPARTMENT 品 保 Q C DEPARTMENT 采 购 PURCHASING DEPARTMENT 联系电话： ж 承认书一式三份，惠蒙贵司承认签章 ж Approval in duplicate, please signed by your company. 承認書 APPROVAL A19-1.13黑-L120MM 2022-2-11 Shenzhen Kunhong Intelligent Electronics Co., Ltd Address:Whole Floor 301, 401, Building 35, Cuigang Industrial Area 5, Huaide Community, Fuyong Street, Bao’an District, Shenzhen, China SHENZHEN 测试项目设备 1. S11参数 （S-parameter） 1.回波损耗 （Return Loss） 2.电压驻波比（VSWR） 网络分析仪: Agilent E5071B HP 8753D 2.有源测试 （Active） 1.发射功率 （TRP） 2.接收灵敏度（TIS） 1.暗室：ETS 7x4x3 m (3D) Chamber ETS 5x3x3 m (3D) Chamber 2.综合测试仪: Agilent 8960 E5515B ×2 StarPoint SP6011 3.无源测试 （Passive） 1.天线增益 （Gain）2.天线效 率 （Efficiency） 1.暗室：ETS 7x4x3 m (3D) Chamber ETS 5x3x3 m (3D) Chamber 2.网络分析仪：Agilent E5071B HP 8753D SHENZHEN 天线性能 SHENZHEN 天线增益与效率 SHENZHEN SHENZHEN

No.：BCTC/RF-EMC-007 Page: 1 of 54 Edition：B.0 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2308045020E Applicant: Shenzhen Kunhong Intelligent Electronics Co., Ltd Product Name: Smart Bracelet Model/Type Reference: BSH-SW80-001B Tested Date: 2023-08-30 to 2023-09-06 Issued Date: 2023-09-06 Report No.: BCTC2308045020E No.：BCTC/RF-EMC-007 Page: 2 of 54 Edition：B.0 FCC ID:2BCM9-SW80 The test report is effective only with both signature and specialized stamp.This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full.The tested sample(s) and the sample information are provided by the client. Product Name: Smart Bracelet Trademark: N/A Model/Type Reference: BSH-SW80-001B Prepared For: Shenzhen Kunhong Intelligent Electronics Co., Ltd Address: Whole Floor 301, 401, Building 35, Cuigang Industrial Area 5, Huaide Community, Fuyong Street, Bao’an District, Shenzhen, China Manufacturer: Shenzhen Kunhong Intelligent Electronics Co., Ltd Address: Whole Floor 301, 401, Building 35, Cuigang Industrial Area 5, Huaide Community, Fuyong Street, Bao’an District, Shenzhen, China Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2023-08-30 Sample Tested Date: 2023-08-30 to 2023-09-06 Issue Date: 2023-09-06 Report No.: BCTC2308045020E Test Standards: FCC Part15.247 ANSI C63.10-2013 Test Results: PASS Remark: This is Bluetooth BLE radio test report. Tested by: Approved by: Kelsey Tan/ Project Handler Zero Zhou/Reviewer Report No.: BCTC2308045020E No.：BCTC/RF-EMC-007 Page: 3 of 54 Edition：B.0 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information And Test Setup ..................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 9 4.3 Support Equipment ............................................................................................... 9 4.4 Channel List ........................................................................................................ 10 4.5 Test Mode ........................................................................................................... 10 4.6 Table of parameters of text software setting ....................................................... 10 5. Test Facility And Test Instrument Used ............................................................... 11 5.1 Test Facility ......................................................................................................... 11 5.2 Test Instrument Used .......................................................................................... 11 6. Conducted Emissions .......................................................................................... 13 6.1 Block Diagram Of Test Setup .............................................................................. 13 6.2 Limit .................................................................................................................... 13 6.3 Test procedure .................................................................................................... 13 6.4 EUT Operating Conditions .................................................................................. 13 6.5 Test Result .......................................................................................................... 14 7. Radiated Emissions ............................................................................................. 16 7.1 Block Diagram Of Test Setup .............................................................................. 16 7.2 Limit .................................................................................................................... 17 7.3 Test procedure .................................................................................................... 18 7.4 EUT operating Conditions ................................................................................... 19 7.5 Test Result .......................................................................................................... 20 8. Radiated Band Emission Measurement And Restricted Bands Of Operation ..... 25 8.1 Block Diagram Of Test Setup .............................................................................. 25 8.2 Limit .................................................................................................................... 25 8.3 Test Procedure ................................................................................................... 26 8.4 EUT Operating Conditions .................................................................................. 27 8.5 Test Result .......................................................................................................... 27 9. Power Spectral Density Test ............................................................................... 28 9.1 Block Diagram Of Test Setup .............................................................................. 28 9.2 Limit .................................................................................................................... 28 9.3 Test procedure ........................................................................................…

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Report No.: BCTC2308045020E No.：BCTC/RF-EMC-007 Page: 52 of 54 Edition：B.0 15. EUT Test Setup Photographs Conducted Measurement Photos Report No.: BCTC2308045020E No.：BCTC/RF-EMC-007 Page: 53 of 54 Edition：B.0 Radiated Measurement Photos