SAR

FCC ID: Z9G-EDF87

RF Exposure Info

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FCCID_4309452

Uni+nTrust Page 1 of 10 Report No.: 190505003RFC—2 SAR TEST EXCLUSION EVALUATION REPORT Product Name: Truly Wireless Stereo Earbuds EDIFIER Trade Mark: Model No. / HVIN: TWS1 Add. Model No. / HVIN: N/A Report Number: 190505003RFC—2 FCC 47 CFR Part 2.1093 Test Standards: RSS—102 Issue 5 FCC ID:29G—EDF87 IC: 10004A—EDF87 Test Result: PASS Date of Issue: June 3, 2019 Prepared for: Edifier International Limited P.O. Box 6264 General Post Office Hong Kong Prepared by: Shenzhen UnionTrust Quality and Technology Co., Ltd. 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China TEL: +86—755—2823 0888 FAX: +86—755—2823 0886 Prepared by: [0 Reviewed by: Kevin Liang Assistant Manager Approved by: Date: June 3, 2019 \hl Technical Director Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua NewDistrict, Shenzhen, China Tel: +86—755—28230888 Fax: +86—755—28230886 E—mail: info@uttab.com Hitp:hamw.uttlab.com

Unl%nTr USt Page 2 of 10 Report No.: 190505003RFC—2 Version Version No. Date Description V1.0 June 3, 2019 Original Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86—755—28230888 Fax: +86—755—28230886 E—mail: info@uttiab.com Hitpiwww uttlab.com

Unl%nTr USt Page 3 of 10 Report No.: 190505003RFC—2 CONTENTS 1. GENERAL INFORMATION .......... .cc ceneeneeeererererereererereerereerererereenenerereenenerereenerereenen en en nen en en neneneeereenennenenennenennenenen en 4 1.1 CLIENT INFORMATION aanaspssa 1.2 EUT InFfoRMation ... 1.3 PRoDUCT SPECIFICATION SUBJECTIVE TO THIS STANDARD 1.4 OTHER INFORMATION ......ccccccccmenemememnmnenennmnenenenees 1.5 GENERAL DESCRIPTION OF APPLIED STANDARDsS.. 1.6 DEVIATION FROM STANDARDS..........ccccscmecce. 1.7 ABNORMALITIES FROM STANDARD CoNDiITIONS. 1.8 OthER InFoRmation RequestED 8y ThE Custom 2. EQUIPMENT LIST ......ccccccmmmemmmmmmememmmecnenes am 3. SAR TEST EXCLUSION EVALUATION.. 3.1 REFERENCE DOCUMENTS FOR EVALUATION ..... ... .c en venenennmnenenenncnene va@v00aa 3.2 ExemPTion Limits FoR RouTINE EvALUATION— SAR EvaLuATION 3.2.1 SAR TEST EXCLUSION THRESHOLD........... cce 3.2.2 TEST PROCEDURE...... 3.3 MPECaLcutation ResuLts. 3.3.1 FOR BT...c.c.zczles APPENDIX 1 PHOTOS OF TEST SETUP ..... ... cccccccnenenmmenecmnmemecne cso APPENDIX 1 PHOTOS OF EUT CONSTRUCTIONAL DETAILS.. Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86—755—28230888 Fax: +86—755—28230886 E—mail: info@uttiab.com Hitpiwww uttlab.com

Uni#nTrUust Page 4 of 10 Report No.: 190505003RFC—2 GENERAL INFORMATION 1.1 CLIENT INFORMATION Applicant: Edifier International Limited Address of Applicant: P.O. Box 6264 General Post Office Hong Kong Manufacturer: Edifier International Limited Address of Manufacturer: P.O. Box 6264 General Post Office Hong Kong 1.2EUT INFORMATIO N Product Name: Truly Wireless Stereo Earbuds Model No. / HVIN: TWS1 Add. Model No. / HVIN: N/A Trade Mark: EDIFIER DUT Stage: Identical Prototype Bluetooth 5.0 EUT Supports Function: 2.4 GHz ISM Band: (LE/ 2LE/ LE Code mode is not supported) Software Version: V1.0 Hardware Version: V1.0 Sample Received Date: May 10, 2019 Sample Tested Date: May 10, 2019 to June 3, 2019 1.3PRODUCT SPECIFICATION SUBJECTIVE TO THIS STANDARD For BT_EDR Frequency Band: 2400 MHz to 2483.5 MHz Frequency Range: 2402 MHz to 2480 MHz Bluetooth Version: Bluetooth BR + EDR Modulation Technique: Frequency Hopping Spread Spectrum(FHSS) Type of Modulation: GFSK, 1/ADQPSK, 8DPSK Number of Channels: 79 Channel Separation: 1 MHz Antenna Type: LDS Antenna amgceoauy Right Ear 1.11 dBi Left Ear —0.06 dBi Maximum Peak Power: 10.695 dBm 1.40THER INFORMATION Test channels for BT_EDR Mode URA Erequency Test RF Channel Lists Lowest(L) Middle(M) Highest(H) GESK Channel 0 Channel 39 Channel 78 (pH1, bHs, pHs)_ 2402 MHz to 2480 MHz oaoppipz 2441 Mriz 2480 Mriz TVADGPSK 2402 MHz to 2480 MHz Channel 0 Channel 39 Channel 78 (DH1, DH3, DHS) 2402 MHz 2441 MHz 2480 MHz BDPSK 2402 MHz to 2480 MHz Channel 0 Channel 39 Channel 78 (DH1, DH3, DHS) 2402 MHz 2441 MHz 2480 MHz Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86—755—28230888 Fax: +86—755—28230886 E—mail: info@uttiab.com Hitpiwww uttlab.com

Unl%nTr USt Page 5 of 10 Report No.: 190505003RFC—2 1.5GENERAL DESCRIPTION OF APPLIED STANDARDS The EUT is a RF product, according to the specifications of the manufacturers. It must comply with the requirements of the following standards: ECC 47 CFR Part 2.1093 RSS—102 Issue 5 All test items have been performed and recorded as per the above standards 1.6 DEVIATION FROM STANDARDS None. 1.7 ABNORMALITIES FROM STANDARD CONDITIONS None. 1.8 OTHER INFORMATION REQUESTED BY THE CUSTOMER None. 2. EQUIPMENT LIST Please refer to the RF test report. Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86—755—28230888 Fax: +86—755—28230886 E—mail: info@uttiab.com Hitpiwww uttlab.com

Uni#nTrUust Page 6 of 10 Report No.: 190505003RFC—2 3. SAR TEST EXCLUSION EVALUATION 3.1REFERENCE DOCUMENTS FOR EVALUATION No. Identity Document Title 4 FCC 47 CFR Part 21093 Radiofrequency radiation exposure evaluation: portable devices. Radio Frequency (RF) Exposure Compliance of 2 RSS—102 Issue 5 Radiocommunication Apparatus (All Frequency Bands) 3 KDB 447498 DO1 General RF RF EXPOSURE PROCEDURES AND EQUIPMENT Exposure Guidance v0O6 AUTHORIZATION POLICIES FOR MOBILE AND PORTABLE DEVICES 3.2 EXEMPTION LIMITS FOR ROUTINE EVALUATION — SAR EVALUATION 3.2.1 SAR Test Exclusion Threshold 3.2.1.1 KDB 447498 DO1 v06 Appendix A SAR Test Exclusion Thresholds for 100 MHz — 6 GHz and s 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. The equation and threshold in 4.3.1 must be applied to determine SAR test exclusion. MHz 5 10 15 20 25 mm 39 77 116 155 194 300 27 55 82 110 137 450 22 45 67 89 112 835 16 33 49 66 82 900 16 32 47 63 79 1500 12 24 37 49 61 SAR Test Exclusion 1900 11 22 33 44 54 Threshold (mW) 2450 10 19 29 38 48 3600 8 16 24 32 40 5200 7 13 20 26 33 5400 6 13 19 26 32 5800 6 12 19 25 31 Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86—755—28230888 Fax: +86—755—28230886 E—mail: info@uttiab.com Hitpiwww uttlab.com

Uni#nTrUust Page 7 of 10 Report No.: 190505003RFC—2 MHz 150 300 450 835 98 900 95 SAR Test 1500 73 86 98 Exclusion 1900 65 76 87 98 Threshold (mW) 2450 57 67 77 86 96 3600 47 55 63 71 79 5200 9 46 53 59 66 5400 9 45 52 58 65 5800 7 44 50 56 62 Note: 10—z Extremity SAR Test Exclusion Power Thresholds are 2.5 times higher than the 1—g SAR Test Exclusion Thresholds mdicated above. These thresholds do not apply. by extrapolation or other means, to occupational exposure limits. 3.2.1.2 RSS—102 Issue 5 Table 1: SAR evaluation — Exemption limits for routine evaluation based on frequency and separation distance Frequency Exemption Limits (mW) (MHz) At separation LAt separation Atseparation Atseparation At separation distance of distance of distance of distance of distance of <5 mm 10 mm 15 mm 20 mm 25 mm <300 71 mW 101 mW 132 mW 162 mW 193 mW 450 52 mW 70 mW 88 mW 106 mW 123 mW 835 17 mW 30 mW 42 mW 55 mW 67 mW 1900 7 mW 10 mW 18 mW 34 mW 60 mW 2450 4 mW 7 mW 15 mW 30 mW 52 mW 3500 2 mW 6 mW 16 mW 32 mW 55 mW 5800 1 mW 6 mW 15 mW 27 mW 41 mW Frequency Exemption Limits (mW) (MHz) At separation Atseparation Atseparation Atseparation At separation distance of distance of distance of distance of distance of 30 mm 35 mm 40 mm 45 mm >50 mm <300 223 mW 254 mW 284 mW 315 mW 345 mW 450 141 mW 159 mW 177 mW 195 mW 213 mW 835 80 mW 92 mW 105 mW 117 mW 130 mW 1900 99 mW 153 mW 225 mW 316 mW 431 mW 2450 83 mW 123 mW 173 mW 235 mW 309 mW 3500 86 mW 124 mW 170 mW 225 mW 290 mWw 3800 56 mW 71 mW 85 mW 97 mW 106 mW 4 The exemption limits in Table 1 are based on measurements and simulations of half—wave dipole antennas at separation distances of 5 mm to 25 mm from a flat phantom, providing a SAR value of approximately 0.4 Wikg for 1 g of tissue. For low frequencies (300 MHz to 835 MHz), the exemption limits are derived from a linear fit. For high frequencies (1900 MHz and above), the exemption limits are derived from a third order polynomial fit. 5 Transmitters operating between 0.003—10 MHz, meeting the exemption from routine SAR evaluation, shall Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86—755—28230888 Fax: +86—755—28230886 E—mail: info@uttiab.com Hitpiwww uttlab.com

Unl% nTrUSt Page 8 of 10 Report No.: 190505003RFC—2 demonstrate compliance to the instantaneous limits in Section 4. 3.2.2 Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. 3.3 MPE CALCULATION RESULTS Note: For the test results, the EUT had been tested with all conditions. But only the worst case was shown in test report. 3.3.1 ForBT For BT_BR & EDR function, operating at 2402MHz to 2480 MHz for GFSK, n/4 DQPSK, 8BDPSK 3.3.1.1 Antenna Type: Chain 0: LDS antenna 3.3.1.2 Antenna Gain: Chain 0: 2402MHz to 2480 MHz: 1.11 dBi 3.3.1.3 Minimum contact distance: The following is the product antenna location. o _ E. Q IHnmg||L||||||H|IZHu|igucyuL\gllt\,n|wglflg|’|9ill|i\g|3|_h[l lf l%1|n&ul] A 0s tc ecce Toi. The minimum contact distance is more than 10 mm. So, the 10 mm separation distance applies. Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Blook A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86—755—28230888 Fax: +86—755—28230886 E—mail: info@uttlab.com Hitp:iwww uttlab.com

Unl%nTr USt Page 9 of 10 Report No.: 190505003RFC—2 3.3.1.4 Results for FGC 47 CFR Part 2.1093 [uneun Maximum Tune—u Separation Snss Operating Frequency Power Tolerance Power P Dipstance Exclusion Mode (Average) Threshold (MHz) (dBm) (dBm) (dBm) (mW) (mm) (mW) EDR 2402—2480 5.5 2 7.5 56234 10 19 So the transmitter complies with the RF exposure requirements and the SAR is not required. 3.3.1.5 Results for RSS—102 Issue 5 ynes.up Maximum Tune—up Separation oakiTest Operating Frequency Power Tolerance Power Distance Exclusion Mode (Average) Threshold (MHz) (dBm) (dBm) (dBm) (mW) (mm) (mW) EDR 2402—2480 5.5 2 7.5 5.6234 10 7 So the transmitter complies with the RF exposure requirements and the SAR is not required. Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86—755—28230888 Fax: +86—755—28230886 E—mail: info@uttiab.com Hitpiwww uttlab.com

Unl%nTr USt Page 10 of 10 Report No.: 190505003RFC—2 APPENDIX 1 PHOTOS OF TEST SETUP N/A APPENDIX 1 PHOTOS OF EUT CONSTRUCTIONAL DETAILS Refer to Appendix 2 for EUT external and internal Photos. *** End of Report *** The test report is effective only with both signature and specialized stamp. The result(s) shown in this report refer only to the sample(s) tested. Without written approval of UnionTrust, this report can‘t be reproduced except in full. Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86—755—28230888 Fax: +86—755—28230886 E—mail: info@uttiab.com Hitpiwww uttlab.com


Document Created: 2019-06-07 21:39:18
Document Modified: 2019-06-07 21:39:18
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