2AGA6-CHISANAS2True Wireless Noise Cancellation Earbuds

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Report No.: W EXHIBI EUT View 1 EUT View 2 WTX20X010 T 2 - EUT 1 2 01872W-1 T EXTER RNAL PH HOTOGR APHS FCC Model: S2 Part 15.247 Report No.: W EUT View 3 EUT View 4 WTX20X010 3 4 01872W-1 FCC Model: S2 Part 15.247 Report No.: W EUT View 5 EUT View 6 WTX20X010 5 6 01872W-1 FCC Model: S2 Part 15.247 Report No.: W EUT View 7 EUT View 8 WTX20X010 7 8 01872W-1 FCC Model: S2 Part 15.247 Report No.: W EUT View 9 EUT View 1 WTX20X010 9 10 01872W-1 FCC Model: S2 Part 15.247 Report No.: W EUT View 1 EUT View 1 WTX20X010 11 12 01872W-1 FCC Model: S2 Part 15.247 Report No.: W EUT View 1 EUT View 1 WTX20X010 13 14 01872W-1 FCC Model: S2 Part 15.247 Report No.: W EUT View 1 EUT View 1 WTX20X010 15 16 01872W-1 FCC Model: S2 Part 15.247 Report No.: W EUT View 1 EUT View 1 WTX20X010 17 18 01872W-1 FCC Model: S2 Part 15.247 Report No.: W EUT View 1 WTX20X010 19 01872W-1 FCC Model: S2 Part 15.247

Report No.: W EXHIBI Proposed Specificatio n silk-screened Proposed WTX20X010 T 1 - PRO FCC ID La ns: Text is b d onto the EU Label Loca 01872W-1 ODUCT L abel Forma black in colo UT or shall be ation on EU LABELIN at FCC ID: 2 r and justifie e affixed at a UT FCC NG 2AGA6-CH ed. Labels ar conspicuous ID Label Lo HISANAS2 re printed in location on t cation indelible ink the EUT. FCC k on perman Model: S2 Part 15.247 nent adhesive e

Report No.: W EXHIBI EUT Housin EUT Housi n WTX20X010 T 3 - EUT ng and Boar ng and Boar 01872W-1 T INTER rd View 1 rd View 2 NAL PHO OTOGRA APHS BTAn BTAnte ntenna FCC enna Model: S2 Part 15.247 Report No.: W Solder Boa r Solder Boar WTX20X010 rd-Compone rd-Compone 01872W-1 ent View 1 ent View 2 FCC Model: S2 Part 15.247 Report No.: W Solder Boa r Solder Boar WTX20X010 rd-Compone rd-Compone 01872W-1 ent View 3 ent View 4 FCC Model: S2 Part 15.247

RF Exposure Requirements Product Description: True Wireless Noise Cancellation Earbuds Model No.: S2 FCC ID: 2AGA6-CHISANAS2 According to the KDB 447498 D01 v06 section 4.3.1, for 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ꞏ [√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 Calculation Result: Tx frequency range: 2402-2480MHz Min. test separation distance: 5mm Maximum Conducted Output Power: -1.83dBm Tune-Up output power: -1dBm RF channel transmit frequency: 2480MHz Result: 0.3 Limit: 3.0 The exclusion thresholds is 0.3< 3, so the transmitter complies with the RF exposure requirements and the SAR is not required.

Model: S2 Report No.: WTX20X01001872W-1 Page 1 of 55 FCC Part 15.247 FCC Part 15C Measurement and Test Report For Shenzhen AngSi Technology Co., Ltd. 6F building B, Dingxin science park, Hong Lang North No.2 Road, Bao An District, ShenZhen, China FCC ID: 2AGA6-CHISANAS2 FCC Rule(s): FCC Part 15.247 Product Description: True Wireless Noise Cancellation Earbuds Tested Model: S2 Report No.: WTX20X01001872W-1 Sample Receipt Date: Jan.08, 2020 Tested Date: Jan.08, 2020 to Mar.04, 2020 Issued Date: Mar.04, 2020 Tested By: Jason Su / Engineer Reviewed By: Lion Cai / RF Manager Approved & Authorized By: Silin Chen / Manager Prepared By: Shenzhen SEM Test Technology Co., Ltd. 1/F, Building A, Hongwei Industrial Park, Liuxian 2nd Road, Bao'an District, Shenzhen, P.R.C.（518101） Tel.: +86-755-33663308 Fax.: +86-755-33663309 Website: www.semtest.com.cn Note: This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen SEM Test Technology Co., Ltd. Model: S2 Report No.: WTX20X01001872W-1 Page 2 of 55 FCC Part 15.247 TABLE OF CONTENTS 1. GENERAL INFORMATION ................................................................................................................................... 4 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ............................................................................... 4 1.2 TEST STANDARDS ................................................................................................................................................... 5 1.3 TEST METHODOLOGY ............................................................................................................................................. 5 1.4 TEST FACILITY ....................................................................................................................................................... 5 1.5 EUT SETUP AND TEST MODE ................................................................................................................................. 6 1.6 MEASUREMENT UNCERTAINTY .............................................................................................................................. 7 1.7 TEST EQUIPMENT LIST AND DETAILS ..................................................................................................................... 8 2. SUMMARY OF TEST RESULTS ......................................................................................................................... 10 3. RF EXPOSURE ....................................................................................................................................................... 11 3.1 STANDARD APPLICABLE ....................................................................................................................................... 11 3.2 TEST RESULT........................................................................................................................................................ 11 4. ANTENNA REQUIREMENT ................................................................................................................................ 12 4.1 STANDARD APPLICABLE ....................................................................................................................................... 12 4.2 EVALUATION INFORMATION ................................................................................................................................ 12 5. FREQUENCY HOPPING SYSTEM REQUIREMENTS ................................................................................... 13 5.1 STANDARD APPLICABLE ....................................................................................................................................... 13 5.2 FREQUENCY HOPPING SYSTEM............................................................................................................................. 13 5.3 EUT PSEUDORANDOM FREQUENCY HOPPING SEQUENCE .................................................................................... 14 6. QUANTITY OF HOPPING CHANNELS AND CHANNEL SEPARATION ................................................... 15 6.1 STANDARD APPLICABLE ....................................................................................................................................... 15 6.2 TEST PROCEDURE ................................................................................................................................................. 15 6.3 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 15 7. DWELL TIME OF HOPPING CHANNEL .......................................................................................................... 19 7.1 STANDARD APPLICABLE ....................................................................................................................................... 19 7.2 TEST PROCEDURE ................................................................................................................................................. 19 7.3 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 20 8. 20DB BANDWIDTH ............................................................................................................................................... 27 8.1 STANDARD APPLICABLE ....................................................................................................................................... 27 8.2 TEST PROCEDURE ................................................................................................................................................. 27 8.3 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 28 9. RF OUTPUT POWE…

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