2AYL4-DK2TWS Earbuds

Overview Eartips (L size)Eartips (M size)Eartips (S size) Initial Use Note: Both earbuds will be charging after putting them into charging case and cover the lid. If the earbuds can not be charged, please charge the charging case by inserting the Type-C cable at the same time. (more details as per the following instructions) The earbuds will be activated automatically once open the lid. Open lid to activate the earbuds automatically, both earbuds will auto pairing. Search for“ DK2” in cellphone and tap to connect both earbuds with cellphone. TWS Pairing and Connection with Cell Phone Press and hold the MFBs of both earbuds for 8 seconds in power off mode. Don't release your fingers untill the red & purple lights flash alternately. At this moment both earbuds will auto pairing and the red & purple lights turn off. Put the earbuds into charging case and power on the earbuds, the earbuds will auto pairing. Search for“ DK2” in cellphone and tap to connect both earbuds with cellphone. Restore the factory setting ( in the case of TWS pairing failure ) Wearing earbuds Put the earbuds as per the microphone upwards into the ear. (as the above picture shows) Charging Charging the earbuds Put both earbuds into the chargin g case (Pins need to be well- contacted), the earbuds will be auto power off and start charging after cover the lid. Charging the charging case Note: Check the battery digital display after connect with charging cable. If there is no display please check whether the connection with charging cable is normal or not. Connect with wireless charger for wireless charging is also available. Functions Charging the earbuds Method 1: Open the lid of charging case and the earbuds will auto power on. Method 2: Press and hold MFB for 3s to power on. Power-off Method 1: Put both ear buds into charging case and cover the lid, the earbuds will auto power off. Method 2: Press and hold MFB for 3s to power off. Answer Call/Hang off Press MFB to answer incoming call and press again to hang off it. Reject Call Press MFB for 1-2s to reject incoming call. Automatic connect with last device Open the lid to connect automatically with the last device which had been connected. Next song Previous song Pause/Playback When playing music, press MFB to pause it and press again to play it. Volume Down Volume Up Attentions 1. 2. 3. 4. 5. Warning 1. 2. 3. 4. 5. 6. Charging jack The medium (M) sized eartips are suitable for majority of people. It is suggested to wear M size eartips. Indicator light/Microphone Ambient lighting MFB Pins User Manual True Wireless Earbuds Model:DK2 Single press Single press Please read the user manual carefully and keep it properly before you use the product. For initial use,make sure the earbuds and case are fully charged. Please charge the earbuds and case if the product hasn't been used for over one month. Be sure to use the CCC certefied charger made by qualified manufacturer. Please make sure the earbuds in pairing status when you search for the bluetooth earbuds name on cellphone. If it's not in pairing, please restart earbud s to make it pairing; If there is something wrong with the cellphone program,please restart the cellphone. If there is something wrong with the TWS earbuds program, Please restart the earbuds or restore to factory setting. Please don't disassemble or modify your earbuds for any reason to avoid the outbreak of a fire ,Electronic breakdown, even destroy the product thoroughly. Please don't exposing the earbuds to extreme temperature (below 0°C or above 45°C) Do n't put the device's LED lights close to human's or animal's eyes. Do not use the earbuds during a thunderstorm. Thunderstoms can cause serious malfunction and increase the risk of electric shock. Do not clean the erbuds with oil and other Volatile liquid. Do not wet the product by contacting with the liquid. When playing music, doulbe press the MFB of right earbud to skip forward(Next song) Double press (R) When playing music, doulbe press the MFB of left earbud to skip track backward(previous song). Double press (L) When playing music,long press the MFB of left earbud for 2s to get volume down. Long press 2S ( L) When playing music,long press the MFB of right earbud for 2s to get volume up. Long press 2S ( R) Chinese & English Switch Model: DK2Bluetooth Version: 5.1 Bluetooth Profiles: HSP/HFP/A2DP/AVRCP Frequency : 2.40GHz~2.48GHz Charging Current(earbuds):40mA Charging Time: About 2 hours Input Voltage (charging case): DC5V/300mA Output Voltage (charging case):DV5V Transmission Power: Class 2 Transmission Distance: >10m After power on the Earbuds and not yet connected with mobile phone, continuously press 5 times on MFB of L & R earbud seperately to switch between Chinese and English. Activate Google Assistant/ Siri Deactivate Google Assistant/Siri Touch the multi-funciton button 3 times to activate Google Assistant /Siri Single touch the multi-function button to deactivate Google Assistnt/Siri Product Specification Talking Time: 6hours Music Time: 8 hours Impedance: 16 Microphone: Silicon Microphone Weight of Earbuds: 3.9g Weight of Charging case: 41.8g 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. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: 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…

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SHENZHEN DUOLAIMI ELECTRONIC CO., LTD 1/1 Letter of Authorization Company: SHENZHEN DUOLAIMI ELECTRONIC CO., LTD Address: Rm B501A, Block B, China Zhenhua (Longhua) Industrial Park, No.64 of Heping Road, Longhua New District, Shenzhen, China Product Name: TWS Earbuds Model Number: DK2 FCC Identifier: 2AYL4-DK2 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Davy Wu Date: 2021-01-07 Title: Manager Signature of applicant:

SHENZHEN DUOLAIMI ELECTRONIC CO., LTD 1/1 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2021-01-07 Subject: Request for Confidentiality FCC ID: 2AYL4-DK2 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual No ☐ Internal Photos No ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Davy Wu Title: Manager

FCC ID: 2AYL4-DK2

Size:17*10.5mm M/N: DK2 FCC ID: 2AYL4-DK2 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. Label location

Antenna location FCC ID: 2AYL4-DK2

Global United Technology Services Co., Ltd. Report No.: GTSL202012000271F01 Authorized Signature: Robinson Lo Laboratory Manager This results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Page 1 of 43 + TEST REPORT Applicant: SHENZHEN DUOLAIMI ELECTRONIC CO., LTD Address of Applicant: Rm B501A, Block B, China Zhenhua (Longhua) Industrial Park, No.64 of Heping Road, Longhua New District, Shenzhen, China Manufacturer: SHENZHEN DUOLAIMI ELECTRONIC CO., LTD Address of Manufacturer: Rm B501A, Block B, China Zhenhua (Longhua) Industrial Park, No.64 of Heping Road, Longhua New District, Shenzhen, China Equipment Under Test (EUT) Product Name: TWS Earbuds Model No.: DK2 Trade Mark: N/A FCC ID: 2AYL4-DK2 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.249 Date of sample receipt: Dec. 18, 2020 Date of Test: Dec. 18, 2020 - Jan. 04, 2021 Date of report issued: Jan. 04, 2021 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. Report No.: GTSL202012000271F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 2 of 43 2 Version Version No. Date Description 00 Jan. 04, 2021 Original Prepared By: Date: Jan. 04, 2021 Project Engineer Check By: Date: Jan. 04, 2021 Reviewer Report No.: GTSL202012000271F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 3 of 43 3 Contents Page 1 COVER PAGE .............................................................................................................................................1 2 VERSION ...................................................................................................................................................2 3 CONTENTS ...............................................................................................................................................3 4 TEST SUMMARY ......................................................................................................................................4 4.1 MEASUREMENT UNCERTAINTY .............................................................................................................4 5 GENERAL INFORMATION .......................................................................................................................5 5.1 GENERAL DESCRIPTION OF EUT ..........................................................................................................5 5.2 TEST MODE .........................................................................................................................................7 5.3 DESCRIPTION OF SUPPORT UNITS ........................................................................................................7 5.4 DEVIATION FROM STANDARDS ..............................................................................................................7 5.5 ABNORMALITIES FROM STANDARD CONDITIONS ....................................................................................7 5.6 TEST FACILITY ....................................................................................................................................8 5.7 TEST LOCATION ..................................................................................................................................8 5.8 ADDITIONAL INSTRUCTIONS ..................................................................................................................8 6 TEST INSTRUMENTS LIST ......................................................................................................................9 7 TEST RESULTS AND MEASUREMENT DATA .....................................................................................11 7.1 ANTENNA REQUIREMENT ....................................................................................................................11 7.2 CONDUCTED EMISSIONS ....................................................................................................................12 7.3 RADIATED EMISSION METHOD ............................................................................................................15 7.3.1 Field Strength of The Fundamental Signal ..................................................................................17 7.3.2 Spurious emissions .....................................................................................................................19 7.3.3 Bandedge emissions ...................................................................................................................30 7.4 20DB OCCUPY BANDWIDTH ...............................................................................................................31 8 TEST SETUP PHOTO .............................................................................................................................34 9 EUT CONSTRUCTIONAL DETAILS .......................................................................................................36 Report No.: GTSL202012000271F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 4 of 43 4 Test Summary Test Item Section in CFR 47 Result Antenna requirement 15.203 Pass AC Power Line Conducted Emission 15.207 Pass Fi…

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Measurement Photos FCC ID: 2AYL4-DK2