RF Exposure Info

FCC ID: Z9G-EDF89

RF Exposure Info

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FCCID_4405324

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM190601498203 Page: 1 of 7 1 Cover page SAR Evaluation Report Application No.: SZEM1906014982CR Applicant: Edifier International Limited Address of Applicant: P.O. Box 6264 General Post Office Hong Kong Manufacturer: Beijing Edifier Technology Co., Ltd. Address of Manufacturer: 8th floor, ZuoAn Building, NO.68 BeiSiHuanXiLu, Haidian District, Beijing 100080, CHINA Factory: Dongguan Edifier Technology Co., Ltd. Address of Factory: No.2 Gongyedong Road, Songshan Lake Sci&Tech Industry Park, Dongguan, Guangdong 523808, PR.China Equipment Under Test (EUT): EUT Name: True Wireless Earbuds with Balanced Armature Drivers Model No.: TWS BA1, Ebuds3 ♣ ♣ Please refer to section 2 of this report which indicates which model was actually tested and which were electrically identical. Trade mark: EDIFIER FCC ID: Z9G-EDF89 Standards: 47 CFR Part 1.1307 47 CFR Part 2.1093 KDB447498D01 General RF Exposure Guidance v06 Date of Receipt: 2019-06-11 Date of Test: 2019-06-12 to 2019-07-15 Date of Issue: 2019-07-17 Test Result : PASS* * In the configuration tested, the EUT complied with the standards specified above. Keny Xu EMC Laboratory Manager

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM190601498203 Page: 2 of 7 2 Version Revision Record Version Chapter Date Modifier Remark 01 2019-07-17 Original Authorized for issue by: Harry Wu /Project Engineer Eric Fu /Reviewer

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM190601498203 Page: 3 of 7 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 ................................................................................................................. 6 4.5 ABNORMALITIES FROM STANDARD CONDITIONS ....................................................................................... 6 4.6 OTHER INFORMATION REQUESTED BY THE CUSTOMER ............................................................................. 6 5 SAR EVALUATION ...................................................................................................................................... 7 5.1 RF EXPOSURE COMPLIANCE REQUIREMENT ............................................................................................ 7 5.1.1 Standard Requirement ..................................................................................................................... 7 5.1.2 Limits ................................................................................................................................................ 7 5.1.3 EUT RF Exposure ............................................................................................................................ 7

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM190601498203 Page: 4 of 7 4 General Information 4.1 General Description of EUT Power supply: Ear Phone: DC3.7V Rechargeable Battery Charge Case: DC 5V,500mA Operation Frequency: 2402MHz to 2480MHz Bluetooth Version: V5.0 Spectrum Spread Frequency Hopping Spread Spectrum(FHSS) Technology: Modulation Type: GFSK, π/4DQPSK, 8DPSK Number of Channels: 79 Channel Spacing: 1MHz Antenna Type: Integral Antenna Antenna Gain: 0.7dBi Declaration of EUT Family Grouping: Model No.: TWS BA1, Ebuds3 Only the model TWS BA1 was tested, since the electrical circuit design, layout, components used, internal wiring and functions were identical for the above models, with only difference on product model.

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM190601498203 Page: 5 of 7 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: • CNAS (No. CNAS L2929) CNAS has accredited SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch EMC Lab to ISO/IEC 17025:2005 General Requirements for the Competence of Testing and Calibration Laboratories (CNAS-CL01 Accreditation Criteria for the Competence of Testing and Calibration Laboratories) for the competence in the field of testing. • 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 with Registration No.: G-20026, R-14188, C-12383 and T-11153 respectively. • FCC –Designation Number: CN1178 SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory has been recognized as an accredited testing laboratory. Designation Number: CN1178. Test Firm Registration Number: 406779. • Innovation, Science and Economic Development Canada SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory has been recognized by ISED as an accredited testing laboratory. CAB identifier: CN0006. IC#: 4620C.

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM190601498203 Page: 6 of 7 4.4 Deviation from Standards None. 4.5 Abnormalities from Standard Conditions None. 4.6 Other Information Requested by the Customer None.

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM190601498203 Page: 7 of 7 5 SAR Evaluation 5.1 RF Exposure Compliance Requirement 5.1.1 Standard Requirement According to KDB447498D01 General RF Exposure Guidance v06 4.3.1. Standalone SAR test exclusion considerations Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Exclusion Threshold condition, listed below, is satisfied. 5.1.2 Limits 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 calculation17  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 5.1.3 EUT RF Exposure The Max. power (including tune-up tolerance) is 8.31 dBm on the lowest channel 2.441 GHz (*) 8.31 dBm logarithmic terms convert to numeric result is nearly 6.78 mW According to the formula. calculate the test exclusion thresholds: .     ,         ,  ∗  General RF Exposure   .  ! !    ! , General RF Exposure = (6.78 mW / 5 mm) x √2.441 GHz = 2.12 (1) SAR requirement: S = 3.0 (2) (1) < (2) So the SAR report is not required. (*) Max. power refer to Report No.:SZEM190601498202 - End of the Report -


Document Created: 2019-08-14 06:34:08
Document Modified: 2019-08-14 06:34:08
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