2AVIT-TW101True Wireless Earbuds

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 1 of 6 External Photos for SZEM2103002425CR FCC ID: 2AVIT-TW101 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 2 of 6 1 EUT Constructional Details SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 3 of 6 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 4 of 6 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 5 of 6 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 6 of 6

TW101- EarFun Free 2 True Wireless Earbuds Superior Sound with Drivers Superior Sound with Drivers Superior Sound with Drivers Model: TW101 Input: DC 5V 1A Made in China 018-210105 FCC ID: 2AVIT-TW101 IPX7 Superior Sound with Composite Drivers EarFun Free 2 30 Hour Playtime: 7 Hours+23 Hours with Charging Case IPX7 Waterproof with SweatShieldTM Technology Wireless Charging Compatible Single Earbud Mode - Right or Left Intuitive Touch Control + Volume Control EarFun Free 2True Wireless Earbuds

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 1 of 9 Internal Photos for SZEM2103002425CR FCC ID: 2AVIT-TW101 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 2 of 9 1 EUT Constructional Details SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 3 of 9 Left earbuds: SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 4 of 9 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 5 of 9 Right earbuds: SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 6 of 9 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 7 of 9 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 8 of 9 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 9 of 9

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM210300242502 Page: 1 of 91 Keny Xu EMC Laboratory Manager TEST REPORT Application No.: SZEM2103002425CR Applicant: Earfun Technology (HK) Limited Address of Applicant: FLAT/RM A 9F, SILVERCORP INTERNATIONAL TOWER 707-713 NATHAN ROAD MONGKOK KL, HONG KONG Manufacturer: Earfun Technology (HK) Limited Address of Manufacturer: FLAT/RM A 9F, SILVERCORP INTERNATIONAL TOWER 707-713 NATHAN ROAD MONGKOK KL, HONG KONG Factory: Dongguan Tenji Industrial Co., Ltd. Address of Factory: No.7, Haiyi Road, Chongtou Community, Chang’an Town, Dongguan City, Guangdong Province, P.R. China Equipment Under Test (EUT): EUT Name: True Wireless Earbuds Model No.: TW101 Trade Mark: EarFun FCC ID: 2AVIT-TW101 Standard(s) : 47 CFR Part 15, Subpart C 15.247 Date of Receipt: 2021-03-05 Date of Test: 2021-03-10 to 2021-03-21 Date of Issue: 2021-03-25 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM210300242502 Page: 2 of 91 Revision Record Version Chapter Date Modifier Remark 01 2021-03-25 Original Authorized for issue by: Charlie Dai/Project Engineer Eric Fu/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM210300242502 Page: 3 of 91 2 Test Summary Radio Spectrum Technical Requirement Item Standard Method Requirement Result Antenna Requirement 47 CFR Part 15, Subpart C 15.247 N/A 47 CFR Part 15, Subpart C 15.203 & 15.247(b)(4) Pass Other requirements Frequency Hopping Spread Spectrum System Hopping Sequence N/A 47 CFR Part 15, Subpart C 15.247(a)(1),(g),(h) Pass Radio Spectrum Matter Part Item Standard Method Requirement Result Conducted Peak Output Power 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 7.8.5 47 CFR Part 15, Subpart C 15.247(b)(1) Pass 20dB Bandwidth ANSI C63.10 (2013) Section 7.8.7 47 CFR Part 15, Subpart C 15.247(a)(1) Pass Carrier Frequencies Separation ANSI C63.10 (2013) Section 7.8.2 47 CFR Part 15, Subpart C 15.247a(1) Pass Hopping Channel Number ANSI C63.10 (2013) Section 7.8.3 47 CFR Part 15, Subpart C 15.247a(1)(iii) Pass Dwell Time ANSI C63.10 (2013) Section 7.8.4 47 CFR Part 15, Subpart C 15.247a(1)(iii) Pass Conducted Band Edges Measurement ANSI C63.10 (2013) Section 7.8.6 47 CFR Part 15, Subpart C 15.247(d) Pass Conducted Spurious Emissions ANSI C63.10 (2013) Section 7.8.8 47 CFR Part 15, Subpart C 15.247(d) Pass Radiated Emissions which fall in the restricted bands ANSI C63.10 (2013) Section 6.10.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions ANSI C63.10 (2013) Section 6.4,6.5,6.6 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Emission Part Item Standard Method Requirement Result Conducted Emissions at AC Power Line (150kHz-30MHz) 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 6.2 47 CFR Part 15, Subpart C 15.207 Pass Remark: According to the declaration from the applicant, the electrical circuit design, layout, components used, internal wiring and functions were identical for the Left and right earbuds. Therefore, only the data of the left earbuds is kept in the report. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM210300242502 Page: 4 of 91 3 Contents Page 1 COVER PAGE ..................................................................................................................................... 1 2 TEST SUMMARY ................................................................................................................................. 3 3 CONTENTS ......................................................................................................................................... 4 4 GENERAL INFORMATION .................................................................................................................. 6 4.1 DETAILS OF E.U.T. ......................................................................................................................... 6 4.2 DESCRIPTION OF SUPPORT UNITS .................................................................................................... 6 4.3 MEASUREMENT UNCERTAINTY ......................................................................................................... 6 4.4 TEST LOCATION ............................................................................................................................. 8 4.5 TEST FACILITY ............................................................................................................................... 8 4.6 DEVIATION FROM STANDARDS ......................................................................................................... 8 4.7 ABNORMALITIES FROM STANDARD CONDITIONS ................................................................................. 8 5 EQUIPMENT LIST ............................................................................................................................... 9 6 RADIO SPECTRUM TECHNICAL REQUIREMENT ............................................................................13 6.1 ANTENNA REQUIREMENT ................................................................................................................13 6.1.1 Test Requirement: ..................................................................................................................13 6.2 OTHER REQUIREMENTS FREQUENCY HOPPING SPREAD SPECTRUM SYSTEM HOPPING SEQUENCE ........14 6.2.1 Test Requirement: ..................................................................................................................14 7 RADIO SPECTRUM MATTER TEST RESULTS .................................................................................16 7.1 CONDUCTED PEAK OUTPUT POWER ................................................................................................16 7.1.1 E.U.T. Operation .............................…

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SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM210300242503 Page: 1 of 6 Keny Xu EMC Laboratory Manager 1 Cover page SAR Evaluation Report Application No.: SZEM2103002425CR Applicant: Earfun Technology (HK) Limited Address of Applicant: FLAT/RM A 9F, SILVERCORP INTERNATIONAL TOWER 707-713 NATHAN ROAD MONGKOK KL, HONG KONG Manufacturer: Earfun Technology (HK) Limited Address of Manufacturer: FLAT/RM A 9F, SILVERCORP INTERNATIONAL TOWER 707-713 NATHAN ROAD MONGKOK KL, HONG KONG Factory: Dongguan Tenji Industrial Co., Ltd. Address of Factory: No.7, Haiyi Road, Chongtou Community, Chang’an Town, Dongguan City, Guangdong Province, P.R. China Equipment Under Test (EUT): EUT Name: True Wireless Earbuds Model No.: TW101 Trade mark: EarFun FCC ID: 2AVIT-TW101 Standards: 47 CFR Part 1.1307 47 CFR Part 2.1093 KDB447498D01 General RF Exposure Guidance v06 Date of Receipt: 2021-03-05 Date of Test: 2021-03-10 to 2021-03-21 Date of Issue: 2021-03-25 Test Result : Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM210300242503 Page: 2 of 6 2 Version Revision Record Version Chapter Date Modifier Remark 01 2021-03-25 Original Authorized for issue by: Charlie Dai/Project Engineer Eric Fu/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM210300242503 Page: 3 of 6 3 Contents Page 1 COVER PAGE ........................................................................................................................................ 1 2 VERSION ................................................................................................................................................ 2 3 CONTENTS ............................................................................................................................................ 3 4 GENERAL INFORMATION ..................................................................................................................... 4 4.1 GENERAL DESCRIPTION OF EUT ......................................................................................................... 4 4.2 TEST LOCATION ................................................................................................................................ 5 4.3 TEST FACILITY .................................................................................................................................. 5 4.4 DEVIATION FROM STANDARDS ............................................................................................................ 5 4.5 ABNORMALITIES FROM STANDARD CONDITIONS .................................................................................... 5 4.6 OTHER INFORMATION REQUESTED BY THE CUSTOMER .......................................................................... 5 5 SAR EVALUATION ................................................................................................................................. 6 5.1 RF EXPOSURE COMPLIANCE REQUIREMENT ........................................................................................ 6 5.1.1 Standard Requirement ................................................................................................................ 6 5.1.2 Limits .......................................................................................................................................... 6 5.1.3 EUT RF Exposure ....................................................................................................................... 6 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM210300242503 Page: 4 of 6 4 General Information 4.1 General Description of EUT E.U.T function: The EUT include the Left and Right earbuds and travel case. the function as the following: 1.The Left and Right earbuds connect to the mobile phone to play or record the audio. 2.The travel case is charged by DC 5V or WPC and charge the left and right earbuds. Battery: Left earbuds: Li-Ion Polymer Battery 3.7V 50mAh (Charge by travel case) Right earbuds: Li-Ion Polymer Battery 3.7V 50mAh (Charge by travel case) Travel case with backup battery: Li-Ion Polymer Battery 3.7V 400mAh (Charged by Type-C port). Cable(s): Type-c cable 50cm Unshielded Non-Core Operation Frequency: 2402MHz to 2480MHz Bluetooth Version: V5.2 Classic Modulation Type: GFSK, pi/4DQPSK, 8DPSK Number of Channels: 79 Channel Spacing: 1MHz Spectrum Spread Technology: Frequency Hopping Spread Spectrum(FHSS) Antenna Type: FPC Antenna Antenna Gain: Left: -0.32dBi; Right: -0.32dBi Remark: According to the declaration from the applicant, the electrical circuit design, layout, components used, internal wiring and functions were identical for the Left and right earbuds. Therefore, only the data of the left earbuds is kept in the report. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM210300242503 Page: 5 of 6 4.2 Test Location All tests were performed at: SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch No. 1 Workshop, M-10, Middle section, Science & Technology Park, Shenzhen, Guangdong, China 518057 Telephone: +86 (0) 755 2601 2053 Fax: +86 (0) 755 2671 0594 No tests were sub-contracted. 4.3 Test Facility The test facility is recognized, certified, or accredited by the following organizations: • A2LA (Certificate No. 3816.01) SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory is accredited by the American Association for Laboratory Accreditation(A2LA). Certificate No. 3816.01. • VCCI The 3m Fully-anechoic chamber for above 1GHz, 10m Semi-anechoic chamber for below 1GHz, Shielded Room for Mains Port Conducted Interference Measurement and Telecommunication Port Conducted Interference Measurement of SGS-CSTC Standards Technical Services Co., Ltd. have been registered in accordance with the Regulations for Voluntary Control Measures wi…

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SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 1 of 3 Setup Photos for SZEM2103002425CR FCC ID: 2AVIT-TW101 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 2 of 3 1 Photographs Conducted Emissions at AC Power Line (150kHz-30MHz) Radiated Spurious Emissions SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 3 of 3