2AANZTWGM-LTrue wireless earbuds with charging case and LED indicator

FCC ID:2AANZTWGM (Right Earphone), FCC ID:2AANZTWGM-L (Left Earphone)

DGL Group LTD. 195 Raritan Center Parkway, Edison, New Jersey, United States,08837 Tel: 001-732-692-5180 Fax: 001-732-692-5000 E-Mail: [email protected] Date：2021/08/13 To: FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 We, DGL Group LTD., hereby declare that The RF chip, model: AC6973A, installed in our product named as True wireless earbuds with charging case and LED indicator; Model No.: FB-TWGM-MC; 2AANZ TWGM-L ,which support bluetooth BDR(GFSK) , EDR(π/4‐DQPSK), BLE 1M/2M. For use in the US marketing this chip will not support/enable the BLE 1M/2M. And BLE 1M/2M function has been shielded by the manufacturer by using the software. Sincerely Yours, Signature: Printed Name: Amy Chao Title: Manager FCC ID:

MIC input charging box output5V ARJ-12 Touch PAD Block Diagram 2402-2480MHz 24MHz AC6973A

DGL Group LTD. 195 Raritan Center Parkway Edison New Jersey ,United States ,08837 Tel: 001-732-692-5180 Fax: 001-732-692-5000 E-Mail: [email protected] Date:09/17/2021 FCC ID Cover Letter The DGL Group LTD. here by submits justification for placing the FCC ID in the Associated User Manual. According to the FCC Regulation and Guidance (KDB Publication 784748 D01 v09r01) allows for the FCC ID to be moved to the User’s manual if the device is unquestionably too small for the FCC ID to be printed. Referring to the above quote, as the device is too small (FCC ID: 2AANZTWGM-L ) to be printed. The FCC ID will be moved to the last page of user’s manual and charging case. The details are as below: A. Side surface (A): The curvature shape of the silicone sleeve back cover is not flat, so it’s hard to affix thelabel on the surface of the earbuds. B. Top cover (B): The plastic logo of the top cover does not provide enough physical space to fit the printing of the FCC ID according to below reference picture. Conclusion： Based on the above description of area A to B, we conclude that the device is unquestionably too samll for enabling the FCC ID to be printed onto any surface, We therefore request to move the FCC ID to the User manual and charging case Sincerely Yours, Signature: Printed Name: Amy Chao Title: Manager

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210831-45430E-RF Page 1 of 4 EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210831-45430E-RF Page 2 of 4 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210831-45430E-RF Page 3 of 4 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210831-45430E-RF Page 4 of 4 Charging Box

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210831-45430E-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.: SZ3210831-45430E-RF Page 1 of 3 EXHIBIT C - EUT INTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210831-45430E-RF Page 2 of 3 Antenna Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210831-45430E-RF Page 3 of 3

Circuit Description The 24MHZ crystal oscillator drives the base of Y1. The modulation provided by AC6973AU1. The output of AC6973Amodule (U1)has the matching network consisting ofR2 R1 C3and that limit the harmonic content and effect the proper coupling of the antenna to the output stage. Antenna, Ground and Power Source The antenna consists of a 2.4GHz Ceramic antenna There is no external ground connection. The ground is only that of the printed circuit board. Electric current is supplied by a 3.7 Volt primary battery Feature: Frequency Range: 2402MHz-2480MHz Modulation Type: GFSK, π /4-DQPSK AntennaType: Crystal: 24MHz Wire antenna

D C B A 123456 A B C D 654321 MIC POWER LED DAC L1 0R L3 NC Y1 24MHz C14 1 0 5 C18 NC LED1 RED P6 P7 P5 P8 LED2 BLUE C1 1 0 5 L2 NC P 1 1 P9 P 1 0 P 1 2 P 1 3 P4 R1 5K1/NC C2 1 0 5 1 2 3 A1 ANTBNE_2P L5 0R + 1 2 M1 C11 NC L6 0R L7 0R C12 NC C15 NC 12 A2 ANTBNE A3 ANTENNA P1 R3 1K P2 P3 C6 1PF-5 0 PF 1 VIM 2 VDD 3 GND U2 R2 1K C8 104 R4 0R P 1 5 10 BT_RF 7 VBAT 8 BT_AVDD 5 PB4 6 LDO_IN 4 PB6 2 DACR 18 PA1 16 USBDP 11 VSSIO 12 BT_OSCI 9 PB1 3 PB7 19 VDDIO 1 DACL 0 RFGND 17 PA2 20 DACVSS 13 BT_OSCO 14 PC5 15 USBDM U1 AC6973A-QFN20 3*3 $$$13961 VBAT+ VBAT+ DC_5V USBDP USBDM THC/P/P/POWER DC_5V USBDM USBDP DACL+ DACL- VDDIO VDDIO MICIN DACL+ DACL- LED_B/R VBAT+ THC/P/P/POWER VBAT- VBAT+ DC_5V VBAT- LED_B/R MICIN Builtin touch electric circuit Update point Testing point Charging box power Charging Battery

2021-09-11 Note: 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 DGL Group, LTD. 195 Raritan Center Parkway, Edison, New Jersey, 08837, United States FCC ID: 2AANZTWGM-L Report Type: Original Report Product Type: True wireless earbuds with charging case and LED indicator Report Number: SZ3210831-45430E-RF-00 Report Date: Reviewed By: Jimmy Xiao RF Engineer Prepared By: Bay Area Compliance Laboratories Corp. (Shenzhen) 5F(B-West) , 6F, 7F, the 3rd Phase of Wan Li Industrial Building D, Shihua Rd, FuTian Free Trade Zone, Shenzhen, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: SZ3210831-45430E-RF-00 FCC Part 15.247 Page 2 of 47 TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 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 ....................................................................................................... 13 TEST DATA ................................................................................................................................................................ 13 FCC §15.205, §15.209 & §15.247(d) – RADIATED EMISSIONS ...............................................…

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Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210802-32237E-RF Page 1 of 2 EXHIBIT D - TEST SETUP PHOTOGRAPHS Conducted Emissions - Front View Conducted Emissions - Side View Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210831-45430E-RF Page 2 of 2 Radiated Emissions View (Below 1 GHz) Radiated Emissions View (Above 1 GHz)