2AS3I-TWS-EARBUDSTrue Connect Truly Wireless Earphones

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna. -- Increase the separation between the equipment and receiver. -- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician for help. The device has been evaluated to meet general RF exposure requirement. Wearing the For additional user materials and warranty information, please visit alteclansing.com Reset Function: MZX635N QUICK START GUIDE Truly Wireless Earphones In the Box True Connect with Charging Case Truly Wireless Earphones Small, Large Ear Cushions USB-C Charging Cable A Closer Look Multi-Function Touch control panel LED Indicator Charging Contacts Ear Tips Charging Red = Charging Digital Display Screen = Fully Charged 2 Hours Full Charge Earbud Controls *To use Siri or Google Assistant, you must have a phone that is compatible with one of the two voice assistants (iOS or Android, respectively). *Your Wireless Earbuds will not work with Siri or Google Assistant if the assistant is not first enabled within the settings on the phone. For more information, see your phone’s user manual. *You must be within Bluetooth® range to use Siri or Google Assistant via your Wireless Earbuds. Press & Hold 3 sec: ON/OFF Press: Play/Pause/Answer & End call Press 2X: Previous Track Press 3X: Decrease Volume Press & Hold 2 sec: Reject call/Just Ask* Press & Hold 3 sec: ON/OFF Press: Play/Pause/Answer & End call Press 2X: Next Track Press 3X: Increase Volume Press & Hold 2 sec: Reject call/Just Ask* Left EarbudRight Earbud Bluetooth Pairing 12:12 PM Bluetooth Bluetooth ON Now discoverable AL True Connect Pairing Mode = Take out from the charging case, they will automatically power on. Paired = Slow Flashing Blue

Shenzhen Sowak Electronic Co., Ltd. Agent Authorization Company: Shenzhen Sowak Electronic Co., Ltd. Address: No.88, Jinkang Road, Jinsha Community, Kengzi Street, Pingshan, Shenzhen, 518122 China Product Name: True Connect Truly Wireless Earphones Model Number(s): MZX635N, MZX637N, V40066W, MZX634N, MZX1006 Product Description: True Connect Truly Wireless Earphones We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: May. 28, 2021 Name: Yi Zhang Title: General Manager Company: Shenzhen Sowak Electronic Co., Ltd.

Shenzhen Sowak Electronic Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: May. 28, 2021 Subject; Request for Confidentiality FCC ID: 2AS3I-TWS-EARBUDS To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Yi Zhang Title: General Manager

Model Difference Declaration To Whom It May Concern, We, Shenzhen Sowak Electronic Co., Ltd.(True Connect Truly Wireless Earphones) Trademark:ALTEC LANSING; Model Number:MZX635N, MZX637N, V40066W, MZX634N, MZX1006;All model’s the function, s oftware and electric circuit are the same, only with a product color, appearance and model named different for commercial purpose. Test sample model: MZX635N. Please contact me if you have any question. Name: Yi Zhang Date: May. 28, 2021 Title: General Manager Signature of applicant:

Annex A External Photos Report No.: HK2105201556‐E Page 1 of 4 Report No.: HK2105201556‐E Page 2 of 4 Report No.: HK2105201556‐E Page 3 of 4 Report No.: HK2105201556‐E Page 4 of 4

FCC ID LABEL: Ca. 5mm x 10mm Label Location FCC ID: 2AS3I-TWS-EARBUDS

Annex B Internal Photo Report No.:HK2105201556-E Page 1 of 3 Antenna Antenna Report No.:HK2105201556-E Page 2 of 3 Report No.:HK2105201556-E Page 3 of 3

FCC RF Exposure EUT Description: True Connect Truly Wireless Earphones Model No.: MZX635N FCC ID: 2AS3I-TWS-EARBUDS 1. Limits According to KDB 447498 D01 General RF Exposure Guidance v06 The 1‐g and 10‐g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤50 mm are determined by: [(max power of channel, including tune‐up tolerance, mW)/(min. test separation distance, mm)]·[√f(GHz)]≤3.0 for 1‐g SAR and ≤ 7.5 for 10‐g extremity SAR, Where: Result=P/D*√F F= the RF channel transmit frequency in GHz P=Maximum turn‐up power in mw D=Min. test separation distance in mm 2. Test Result of RF Exposure Evaluation 2.4G Output power （dBm） Tune Up Power （dBm） Max Tune Up power mW Min test separati on distance mm Result Limit SAR Te s t Exclusio n EDR -1.827 -2±1(-1) 0.794 5 0.246 3.0 Pass Note: PK Output power= conducted power. Conducted power see the test report HK2105201556-E antenna gain=2dBi Per KDB 447498 D01, when the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. The test exclusion threshold is 0.246 which is<= 3, SAR testing is not required. Note: Exclusion Thresholds Results=[(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f (GHz)] f(GHz) is the RF channel transmit frequency in GHz Distance=5mm

Page 1 of 45 Report No.: HK2105201556-E TEST REPORT FCC PART 15 SUBPART C 15.247 T est report On Behalf of Shenzhen Sowak Electronic Co., Ltd. For True Connect Truly Wireless Earphones Model No.: MZX635N, MZX637N, V40066W, MZX634N, MZX1006 FCC ID: 2AS3I-TWS-EARBUDS Prepared For : Shenzhen Sowak Electronic Co., Ltd. No.88, Jinkang Road, Jinsha Community, Kengzi Street, Pingshan, Shenzhen, 518122 China Prepared By : Shenzhen HUAK Testing Technology Co., Ltd. 1-2/F., Building B2, Junfeng Zhongcheng Zhizao Innovation Park, Heping, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Date of Test: May. 20, 2021 ~ May. 28, 2021 Date of Report: May. 28, 2021 Report Number: HK2105201556-E Page 2 of 45 Report No.: HK2105201556-E TEST RESULT CERTIFICATION Applicant’s name ....... Shenzhen Sowak Electronic Co., Ltd. Address ....................... . No.88, Jinkang Road, Jinsha Community, Kengzi Street, Pingshan, Shenzhen, 518122 China Manufacture's Name . . Shenzhen Sowak Electronic Co., Ltd. Address ........................ No.88, Jinkang Road, Jinsha Community, Kengzi Street, Pingshan, Shenzhen, 518122 China Product description Trade Mark: ALTEC LANSING Product name ................ True Connect Truly Wireless Earphones Model and/or type reference ................... . MZX635N, MZX637N, V40066W, MZX634N, MZX1006 Standards ................... . 47 CFR FCC Part 15 Subpart C 15.247 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test ................................. . Date (s) of performance of tests ... .May. 20, 2021 ~ May. 28, 2021 Date of Issue ................................ .May. 28, 2021 Test Result .................................... . Pass Prepared by: Project Engineer Reviewed b y : Project Supervisor Approved b y : Technical Director Page 3 of 45 Report No.: HK2105201556-E Table of Contents Page 1. SUMMARY............................................................................................................................................................ 5 1.1. TEST STANDARDS ..................................................................................................................................................... 5 1.2. TEST DESCRIPTION ................................................................................................................................................... 5 1.3. TEST FACILITY ........................................................................................................................................................... 6 1.4. STATEMENT OF THE MEASUREMENT UNCERTAINTY ............................................................................................... 6 2. GENERAL INFORMATION ....................................................................................................................................... 7 2.1. ENVIRONMENTAL CONDITIONS ............................................................................................................................... 7 2.2. GENERAL DESCRIPTION OF EUT ............................................................................................................................... 7 2.3. DESCRIPTION OF TEST MODES AND TEST FREQUENCY ............................................................................................ 8 2.4. EQUIPMENTS USED DURING THE TEST .................................................................................................................... 9 2.5. RELATED SUBMITTAL(S) / GRANT (S) ........................................................................................................................ 9 2.6. MODIFICATIONS ...................................................................................................................................................... 9 2.7. DESCRIPTION OF TEST SETUP ................................................................................................................................ 10 3. TEST CONDITIONS AND RESULTS ......................................................................................................................... 11 3.1. CONDUCTED EMISSIONS TEST ............................................................................................................................... 11 3.2. RADIATED EMISSIONS AND BAND EDGE ................................................................................................................ 14 3.3. MAXIMUM PEAK CONDUCTED OUTPUT POWER ................................................................................................... 25 3.4. 20DB BANDWIDTH ................................................................................................................................................ 26 3.5. FREQUENCY SEPARATION ...................................................................................................................................... 29 3.6. NUMBER OF HOPPING FREQUENCY ...................................................................................................................... 31 3.7. TIME OF OCCUPANCY (DWELL TIME) ..................................................................................................................... 33 3.8. OUT‐OF‐BAND EMISSIONS ..................................................................................................................................... 36 3.9. PSEUDORANDOM FREQUENCY HOPPING SEQUENCE ........................................................................................... 41 3.10. ANTENNA REQUIREMENT...................................................................................…

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Conducted Emission Radiated Emissions