2AANZSMTWTWS EARBUDS WITH CHARGING CASE

0.0 0.2 0.4 0.6 0.8 1.0

2402~2480MHz BT/BLE ANT Crystal

DGL Grou p LTD. 195 Raritan Center Parkway Edison New Jersey,08837,United States Tel: 001-732-692-5180 Fax: 001-732-692-5000 E-Mail: [email protected] Date: 2021-02-24 We, DGL Group LTD., hereby declare that Our product, TWS EARBUDS WITH CHARGING CASE, Model number: FB-SMTW, FCC ID: 2AANZSMTW is a twins earphone that has a left earphone and a right earphone. We would like to declare that the left earphone and the right earphone are identical in the Antenna & RF circuits. So only choose the one of two earphones to test. We confirm that all information above is true, and we’ll be responsible for all the consequences. Please contact me if you have any question. Sincerely Yours, Signature: Printed Name: Solomon Sheinkopf Title: Manager

DGL Group LTD. 195 Raritan Center Parkway Edison New Jersey,08837,United States Tel: 001-732-692-5180 E-Mail: [email protected] 04/15/2021 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Product Similarity Declaration To Whom It May Concern, We, DGL Group LTD., hereby declare that we have a product named as TWS EARBUDS WITH CHARGING CASE (Model No: FB-SMTW; FCC ID:2AANZSMTW ) was tested by BACL, for our marketing purpose, we would like to list a series models FB-SMTW-ASST on reports and certificate, all the models are identical schematics, except for the differences as below, 1. Different model No. 2. Different model No. has different Color. No other changes are made to them. We confirm that all information above is true, and we’ll be responsible for all the consequences. Please contact me if you have any question. Printed Name: Solomon Title: Manager Signature:

DGL Group LTD. 195 Raritan Center Parkway Edison New Je rsey,08837,United States Tel: 001-732-692-5180 Fax: 001-732-692-5000 E-Mail: [email protected] 2021/02/24 FCC ID Cover Letter The DGL Group LTD. Conclusion： Based on the above description of area A to B, we conclude that the device is unquestionably too small 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 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: 2AANZSMTW) 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 the label 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. Sincerely Yours, Signature: Printed Name: Solomon Sheinkopf Title: Production Design / Project Manager A B Title: Manager

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210121-02703E-RF Page 1 of 8 EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210121-02703E-RF Page 2 of 8 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210121-02703E-RF Page 3 of 8 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210121-02703E-RF Page 4 of 8 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210121-02703E-RF Page 5 of 8 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210121-02703E-RF Page 6 of 8 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210121-02703E-RF Page 7 of 8 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210121-02703E-RF Page 8 of 8

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210121-02703E-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.: SZ3210121-02703E-RF Page 1 of 4 EXHIBIT C - EUT INTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210121-02703E-RF Page 2 of 4 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210121-02703E-RF Page 3 of 4 ANT Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210121-02703E-RF Page 4 of 4

Circuit Description The 24MHZ crystal oscillator drives the base of Y1. The modulation provided by AC6963A. 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: BT: GFSK, π/4 -DQPSK, 8DPSK, BLE: GFSK Antenna Type: Ceramic Antenna Antenna Gain: 2.5dBi MCU: AC6963A Crystal: 24MHz

1 1 <Scale> AC6963A_SCH SCALE: SHEET: OF REVISION RECORD DATE: APPROVED: LTR ECO NO: 6 5 4 3 2 1 DRAWING NO: D C B A TITLE: COMPANY: RELEASED: DATED: DATED: QUALITY CONTROL: CHECKED: DATED: DATED: DRAWN: D C B A CODE: SIZE: REV: D <Code> D MCU AC6963A CHARGE/LED CHG KEY BATTERY V- V+ B- B+ 5V 12pF;+/- 10PPM AUDIO Support AC6956A4 AC6963A AC6966A Pin PB4 PC3 PC4 DM DP,Can not power DACL DACR PB7/ADC9 PB6/ADC8 PB4/ADC7 LDO_IN VBAT BT_AVDD PB1/ADC5 VSSIO BT_OSCI BT_OSCIO DVDD PC1/USBDM USBDP MIC_BIAS/PA2 MIC/PA1 DVDD_IO DACVSS C1 105/0402 C16 1pF/0402 G2 1 2 LDE2 Red 1 2 LDE1 Blue L3 NF 1 2 MIC TP4 TP5 TP3 L4 NF TP1 TP2 TP6 TP7 TP9 TP10 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 U1 QFN20_3X3 C15 224/0402 C8 105/0402 C6 222/0402/16V C7 474/0402/10V R8 NF C2 NF/0402 1 3 2 4 Y1 24M 1 OC/OD 2 GND 3 TCH 4 AHLB 5 VDD 6 TOG U2 ASIC-TOUCH-KEY TP11 C20 224/0402 C12 2.7pF/0402 1 E1 L5 NF L6 2.7pF +3.3V BT_OSCI BT_OSCO DACL VBAT AGND DACR +3.3V LED_B/R DC5V MIC DP DM +3.3V BT_OSCO BT_OSCI MIC_POWER MIC DP DVDD DM DC_EN LED_B/R DACR DACL VBAT DC5V BT_AVDD P/P/POWER BT_RF R/L_SEL P/P/POWER +3.3V TCH

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, United States, 08837 FCC ID: 2AANZSMTW Report Type: Original Report Product Type: TWS EARBUDS WITH CHARGING CASE Re port Number: SZ3210121-02703E-00A Re port Date: 2021-02-22 Reviewed B y: Jacob Kong 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.: SZ3210121-02703E-00A FCC Part 15.247 Page 2 of 56 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.: SZ3210121-02703E-RF EXHIBIT D - TEST SETUP PHOTOGRAPHS Conducted Emissions - Front View Conducted Emissions - Side View Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ3210121-02703E-RF Radiated Emissions View (Below 1 GHz) Radiated Emissions View (Above 1 GHz)