2AU5S-AIW20wearbuds

Report No.: W EXHIBI EUT View 1 EUT View 2 WTX19X100 T 2 - EUT 1 2 71409W T EXTER RNAL PH HOTOGR APHS Mo FCC odel: AI-W20 C Part 15.247 Report No.: W EUT View 3 EUT View 4 WTX19X100 3 4 71409W Mo FCC odel: AI-W20 C Part 15.247 Report No.: W EUT View 5 EUT View 6 WTX19X100 5 6 71409W Mo FCC odel: AI-W20 C Part 15.247 Report No.: W EUT View 7 WTX19X100 7 71409W Mo FCC odel: AI-W20 C Part 15.247

Report No.: W EXHIBI Proposed Specificatio n silk-screened Proposed WTX19X100 T 1 - PRO FCC ID La ns: Text is b d onto the EU Label Loca 71409W ODUCT L abel Forma black in colo UT or shall be ation on EU LABELIN at FCC ID r and justifie e affixed at a UT FCC NG D: 2AU5S-A ed. Labels ar conspicuous ID Label Lo AIW20 re printed in location on t cation indelible ink the EUT. Mo FCC k on perman odel: AI-W20 C Part 15.247 nent adhesivee

Report No.: W Solder Boar Solder Boar WTX19X100 rd-Compone rd-Compone 71409W ent View 2 ent View 3 Mo FCC odel: AI-W20 C Part 15.247 Report No.: W Solder Boar Solder Boar WTX19X100 rd-Compone rd-Compone 71409W ent View 4 ent View 5 Mo FCC odel: AI-W20 C Part 15.247 Report No.: W Solder Boar Antenna Vi WTX19X100 rd-Compone iew Bluetooth 71409W ent View 6 Antenna Mo FCC odel: AI-W20 C Part 15.247

RF Exposure Requirements Product Description: wearbuds Model No.: AI-W20 FCC ID: 2AU5S-AIW20 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: 0.14dBm Tune-Up output power: 1dBm RF channel transmit frequency: 2480MHz Result: 0.4 Limit: 3.0 The exclusion thresholds is 0.4 < 3, so the transmitter complies with the RF exposure requirements and the SAR is not required.

Model: AI-W20 Report No.: WTX19X10071409W Page 1 of 36 FCC Part 15.247 FCC Part 15C Measurement and Test Report For Shenzhen Aukey Smart Information Technology Co.,Ltd. Building P03, South China City Electronics Trading Center, Longgang District, Shenzhen, Guangdong, 518111, China FCC ID: 2AU5S-AIW20 FCC Rule(s): FCC Part 15.247 Product Description: wearbuds Tested Model: AI-W20 Report No.: WTX19X10071409W Sample Receipt Date: 2019-10-17 Tested Date: 2019-10-17 to 2020-01-10 Issued Date: 2020-01-13 Tested By: Mike Shi / 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: AI-W20 Report No.: WTX19X10071409W Page 2 of 36 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 .............................................................................................................................. 6 1.7 TEST EQUIPMENT LIST AND DETAILS ..................................................................................................................... 7 2. SUMMARY OF TEST RESULTS ........................................................................................................................... 9 3. RF EXPOSURE ....................................................................................................................................................... 10 3.1 STANDARD APPLICABLE ....................................................................................................................................... 10 3.2 TEST RESULT........................................................................................................................................................ 10 4. ANTENNA REQUIREMENT ................................................................................................................................ 11 4.1 STANDARD APPLICABLE ....................................................................................................................................... 11 4.2 EVALUATION INFORMATION ................................................................................................................................ 11 5. POWER SPECTRAL DENSITY ........................................................................................................................... 12 5.1 STANDARD APPLICABLE ....................................................................................................................................... 12 5.2 TEST PROCEDURE ................................................................................................................................................. 12 5.3 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 12 6. DTS BANDWIDTH ................................................................................................................................................. 14 6.1 STANDARD APPLICABLE ....................................................................................................................................... 14 6.2 TEST PROCEDURE ................................................................................................................................................. 14 6.3 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 14 7. RF OUTPUT POWER ............................................................................................................................................ 16 7.1 STANDARD APPLICABLE ....................................................................................................................................... 16 7.2 TEST PROCEDURE ................................................................................................................................................. 16 7.3 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 16 8. FIELD STRENGTH OF SPURIOUS EMISSIONS ............................................................................................. 18 8.1 STANDARD APPLICABLE ....................................................................................................................................... 18 8.2 TEST PROCEDURE ................................................................................................................................................. 18 8.3 CORRECTED AMPLITUDE & MARGIN CALCULATION ............................…

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