2ADOZ-TXBTATLASBT ATLAS ON EAR HP

LED AB5377T2 (Part No.: HY0E150IH) Key USB L-Speak R-Speak Charge 26MHz crystal BT ANT

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200624833-RF Page 1 of 3 EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200624833-RF Page 2 of 3 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200624833-RF Page 3 of 3

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200624833-RF EXHIBIT A - FCC ID LABEL AND LOCATION FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925)

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200624833-RF Page 1 of 4 EXHIBIT C - EUT INTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200624833-RF Page 2 of 4 Antenna Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200624833-RF Page 3 of 4 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200624833-RF Page 4 of 4

Operation Description Battery (DC 3.7V) provides energy for the Bluetooth chip (AB5377T2); Crystal oscillator (26MHz) provides the clock signal for the Bluetooth chip. Bluetooth signals get through a matching circuit, and then transmitted to the space through the antenna (2402-2480MHz). When the product is connected, the product can in two-way communication with other Bluetooth Devices, and then the device’s Bluetooth module sends Bluetooth signals into space, the product receives the Bluetooth signal through an antenna, transmission to the Bluetooth chip via matching circuit. When need charging, input USB cable, and connected to the power supply.

D C B A 123456 A B C D 654321 LED KEY DACPOWER AB5377T2 SOP16 OTP M165 V1. 0 VUSBVBATVDDIO 1 2 BT-ANT1 ANTENNA_PIFA C2 105 Y1 26MHZ BT1 3.4V~4.2V 1 VBUS 2 D- 3 D+ 4 ID 5 GND 0 S 0 S 0 S 0 S JACK1 USB-MICRO LOUT+1 LOUT-1 C3 NC C1 NC C4 NC C5 NC LED1 BLUE LED2 RED 5 VDDIO 6 VBAT 8 VDDBT 2 AGND 7 DGND 10 BT_ANT 11 BT_OSCI 12 BT_OSCO 1 PE7/ADC9 4 VUSB 16 DACL 9 PWRKEY 14 ADC10/MICL/PF2 13 ADC5/PB3 3 PE0 15 VCMBUF U1 AB5377T2 SOP16 Part No.: HY0E150IH S1 POWER/PP/PHONE VUSBVBATVDDIO PWRKEY DAC# DAC OSCI OSCO MICIN NEXT VDDIO DAC DAC# LED PREV DAC DAC# VDDBT VBAT VUSB LED BT_ANT PWRKEY

Note: This report must not be used by the customer to claim product certification, approval, or endorsement by A2LA* or any agency of the Federal Government. This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “★”. BACL is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with an asterisk ’*’. Customer model name, addresses, names, trademarks etc. are not considered data. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. FCC PART 15.247 TEST REPORT For Shenzhen Hengxintai Electronics Co., Ltd. Floor#4, Building#8, Xinghui lndustrial Zone, Yanchuan, Songgang Town,Shenzhen China FCC ID: 2ADOZ-TXBTATLAS Report Type: Original Report Product Type: BT ATLAS ON EAR HP Report Number: RSZ200624833-00 Re port Date: 2020-07-13 Reviewed B y: Jimmy Xiao RF En gineer Prepared By: Bay Area Compliance Laboratories Corp. (Shenzhen) 6/F., West Wing, Third Phase of Wanli Industrial Building, Shihua Road, Futian Free Trade Zone, Shenzhen, Guangdong, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200624833-00 FCC Part 15.247 Page 2 of 58 TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 RELATED SUBMITTAL(S)/GRANT(S) ............................................................................................................................. 4 TEST METHODOLOGY .................................................................................................................................................. 4 MEASUREMENT UNCERTAINTY .................................................................................................................................... 5 TEST FACILITY ............................................................................................................................................................. 5 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 6 EUT EXERCISE SOFTWARE .......................................................................................................................................... 6 SPECIAL ACCESSORIES ................................................................................................................................................. 6 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 6 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 6 EXTERNAL I/O CABLE .................................................................................................................................................. 6 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 7 SUMMARY OF TEST RESULTS ............................................................................................................................... 8 TEST EQUIPMENT LIST ........................................................................................................................................... 9 FCC§15.247 (i), §1.1307 (b) (1) &§2.1093 – RF EXPOSURE ...................................................................................... 10 APPLICABLE STANDARD ............................................................................................................................................ 10 FCC §15.203 – ANTENNA REQUIREMENT .......................................................................................................... 11 APPLICABLE STANDARD ............................................................................................................................................ 11 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 11 FCC §15.207 (a) – AC LINE CONDUCTED EMISSIONS ..................................................................................... 12 APPLICABLE STANDARD ............................................................................................................................................ 12 EUT SETUP ................................................................................................................................................................ 12 EMI TEST RECEIVER SETUP ....................................................................................................................................... 12 TEST PROCEDURE ...................................................................................................................................................... 12 CORRECTED FACTOR & MARGIN CALCULATION ..........................................................................…

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EXHIBIT D - TEST SETUP PHOTOGRAPHS Conducted Emissions - Front View Conducted Emissions - Side View Radiated Emissions View (Below 1 GHz) Radiated Emissions View (Above 1 GHz)