2AMSOETW002Wireless Earbuds

R CETW527 EN ... 01 13 ... ES User Manual Manual De Usuario TWS Earbuds With Charging Case Auriculares TWS con estuche de carga User Manual Drop Card ? ? Overview CETW527 True Wireless Stereo Earbuds Charging case for the CETW527 Microphone Type C charging port Case power indicator Charging Contact Lid of charging case Charging Charging the charging case EN 01 Left Earbud Right Earbud Type C charging port USB power source Flashing blue (Case power indicator) Steady Blue (Case power indicator) Charging Fully charged Multi-Function Button(MFB) /Status LED indicator Charging your earbuds 11 2 EN 02 Notes: To check the charging case’s remaining battery power, take the earbuds out of the charging case, then place the earbuds back in the charging case. If there is remaining battery power, the case power indicator will glow blue and indicate the power level. If the case battery power level is low, it will flash red. ( - Blue light) Case power indicator Power level 0~25% 25%~50% 50%~75% 75%~100% When your earbuds battery is low, the earbuds status indicator will slowly flash red (with a tone notification). Open the lid of the charging case, then place the earbuds into the charging case and close the lid to start charging. Earbuds Tone notification Steady red Slowly flashing red Off, LED light is off Low battery Charging Fully charged Off To power them off manually, press and hold the Multi-Function Button(MFB) on a single earbud for 5 seconds. Powering on/off Your CETW527 Earbuds will power on automatically when taken out of the charging case. You can also power them on manually by pressing and holding the Multi-Function Button(MFB) on both earbuds for 5 seconds. Your CETW527 Earbuds will power off automatically when placed back in the charging case. Powering on Powering off ON Power off tone notification Flashing blue twice Power on tone notification ? 11 2 EN 02EN 03 Alternating flashing red and blue on both earbuds Pairing 1. True Wireless stereo connection Take the earbuds out from the charging case, and bring the two earbuds next to each other. When the Earbuds are turned on, it will automatically enter True Wireless stereo pairing mode. Connected tone notification Enter True Wireless stereo pairing mode When True Wireless Stereo connection is successful (the right earbud is con- nected to the left earbud). ? Alternating flashing red and blue on one earbud, being off on the other earbud. EN 04 Alternating flashing red and blue on both earbuds Being off on both earbuds After a successful True Wireless stereo connection, your CETW527 will automatically enter Bluetooth pairing mode with your media device. Turn on Bluetooth in your device’s settings and search for “CETW527”, then tap “CETW527” to connect. 2. Bluetooth connection with your device The earbuds will automatically be paired with your last sucessfully connected media device next time they are turned on. Pairing mode Connected to a device (Successfully paired with your media device). Connected tone notification ON CETW527 Alternating flashing red and blue on one earbud, being off on the other earbud. EN 04EN 05 Controls Phone call mode Music mode Voice Assistant mode Quickly press the MFB three times on the right earbud. Quickly press the MFB twice on either earbud. Press and hold the MFB for 2 seconds on either earbud. Press and hold the MFB for 2 seconds on either earbud. Press the MFB once on either earbud. Press the MFB once on either earbud. Quickly press the MFB twice on the left earbud. Quickly press the MFB twice on the right earbud. Quickly press the MFB three times on the left earbud. Volume down Answer/End a call Reject a call Exit Activiate Siri / other voice assistant Volume up Play/Pause Next track Previous track ? EN 06 Troubleshooting ProblemSolution Your earbuds aren’t connecting to each other. The Earbud LED Indicators on both earbuds are alternat- ing between red and blue lights. First, reset the earbuds by taking out the earbuds from the charging base and then placing them back to check whether they are connected to each other. If they are not, open Bluetooth settings in your device and tap “Forget device” on “CETW527”, then turn off Bluetooth in your device to manually ini- tiate the True Wire stereo connection. Please allow up to 30 seconds to connect if you are in a public area with interfering signals. Your earbuds are connected to each other, but you cannot connect to your device (phone, laptop, tablet etc.) Ensure the earbuds are not currently con- nected to another device. If they are, open Bluetooth settings on those devices and tap “Forget device” on “CETW527”. Confirm the device you would like to pair with is Blue- tooth enabled, please refer to that device’s user manual to confirm. There is no response in the CETW527 earbuds. Firstly, check whether the battery power in earbuds are used up, if they are, charge the earbuds. If they are not, reset the earbuds by taking out the earbuds from the charging base and then placing them back. You can only hear sound on one earbud. Reset the earbuds by taking out the earbuds from the charging base and then placing them back. ? EN 06EN 07 Model NumberCETW527 Model Name True Wireless Stereo Earbuds With charge case Power Input5 V/1A (Charging case) Charging time Up to 2 hours (Charging case) Up to 1.5 hours (Earbuds) Playtime (Earbuds)Up to 5 hours Playtime (with charging case)Up to 12 hours Battery TypeRechargeable Lithium-ion Driver (full range)10 mm × 2 Range10m/33 ft Bluetooth version V 5.3 Dimension (Charging case) 44 x 44 x 25 mm 1.73 x 1.73 x 0.98 inch Weight (with charging case)29.1 g/ 1.03 oz Specifications I Safety Precautions 1. Avoid dropping. 2. Do not disassemble this device. 3. Do not expose this device to rain or moisture or submerge in water. 4. Ideal temperatures are 0°C to 35°C. Avoid extreme temperatures. 5. Keep the device away from excessive heat, such as sunshine, fire or the like. 6. Do not use the device outdoors during thunderstorms. 7. Use o…

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1/1 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company Name: Summit Electronics LLC FRN: 0026659094 Contact Name: Moshe Dancikier Address: 1 Rewe Street, Brooklyn,New York,11211 United States Telephone No: 212-260-0666 Email: [email protected] Applicant: Company name: Summit Electronics LLC Product Description: Wireless Earbuds Grantee code: 2AMSO FCC ID: 2AMSOETW002 Contact Name: Moshe Dancikier Address: 1 Rewe Street, Brooklyn,New York,11211 United States Telephone No: 212-260-0666 Email: [email protected] [Summit Electronics LLC] certifies that, as of the date of this filing of the application with the TCB, [Summit Electronics LLC] is our designated US agent for service of process for the above referenced FCC ID. [Summit Electronics LLC] accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any commission related proceeding involving equipment. [Summit Electronics LLC] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The Summit Electronics LLC is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Date: 2023/07/03 Applicant’s Name: Moshe Dancikier US Agent’s Name: Moshe Dancikier Title: Sourcing Title: Sourcing Signature Signature

C5266091_X24_Ed.2 1/1 “Attestation Statements” TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: Summit Electronics LLC Grantee code: 2AMSO FCC ID: 2AMSOETW002 Contact Name: Moshe Dancikier Address: 1 Rewe Street, Brooklyn,New York,11211 United States Telephone No: 212-260-0666 Fax No: 212-473-1873 Email: [email protected] i. ii. Date: 2023-07- [Summit Electronics LLC] (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. The applicant must sign this certification. [Summit Electronics LLC] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is not] identified onthe Covered List as an entity producing “covered” equipment. The applicant must sign this certification. 03 Applicant’s Name:Moshe Dancikier Title: Sourcing Signature 1 The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist [Summit Electronics LLC] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is not] identified on the Covered List as an entity producing “covered”equipment .

Summit Electronics LLC 1 Rewe Street, Brooklyn,New York,11211 United States Product Similarity Declaration Product name: Wireless Earbuds Model name: CETW527, CETW634, CETW501, CETW572, CETW531, CETW532, CETW526, CETW545, CETW534, CETW591, CETW536, CETW543, CETW544, CEBT470, CCES150, TWS150, TWS100, TWS125, CETW541, UAETW554 FCC ID: 2AMSOETW002 We (Summit Electronics LLC) hereby state that These models have the same circuit schematic, construction, PCB Layout and critical components. Their differences are model name and brand name due to trading purpose. Please kindly handle on the project. Signature: Name: Moshe Dancikier Title: Sourcing 2023/07/03

C5266091_X8_Ed.1 1/1 Letter of Authorization Company: Summit Electronics LLC Address: 1 Rewe Street, Brooklyn,New York,11211 United States Product Name: Wireless Earbuds Model Number: CETW527, CETW634, CETW501, CETW572, CETW531, CETW532, CETW526, CETW545, CETW534, CETW591, CETW536, CETW543, CETW544, CEBT470, CCES150, TWS150, TWS100, TWS125, CETW541, UAETW554 FCC Identifier: 2AMSOETW002 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: Moshe Dancikier Date: 7/03/2023 Title: Sourcing Signature of applicant:

C5266091_X10_Ed.1 1/1 Summit Electronics LLC Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 7/03/2023 Subject: Request for Confidentiality FCC ID: 2AMSOETW002 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 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 Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) No No SDR Software / Security Info No 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: Moshe Dancikier Title: Sourcing

23x7mm Assembled in China 90907 Model: CETW527 Wireless Earbuds Assembled in China 90907 Model: CETW527 Wireless Earbuds print cool gray 11 print cool gray 11 15x3mm Label & Location Not: The FCC ID: 2AMSOETW002 is on page 11 of the manual.

Report No.: NTC2306270F01 Dongguan Nore Testing Center Co., Ltd. Address: Building D, Gaosheng Science and Technology park, Hongtu road, Nancheng district, Dongguan city, Guangdong province, China Web: www.ntc-c.com Tel:+86-769-2202 2444 Fax:+86-769-2202 2799 Page 1 of 9 RF EVALUATION TEST REPORT Applicant......................... : Summit Electronics LLC Address........................... : 1 Rewe Street, Brooklyn,New York,11211 United States Manufacturer.................... : Summit Electronics LLC Address........................... : 1 Rewe Street, Brooklyn,New York,11211 United States Factory........................... : Summit Electronics LLC Address.......................... : 1 Rewe Street, Brooklyn,New York,11211 United States EUT ............................... : Wireless Earbuds Brand Name..................... : COBY, GAMEPUNK, UNDERGROUND AUDIO LABS Model No. ....................... : CETW527, CETW634, CETW501, CETW572, CETW531, CETW532, CETW526, CETW545, CETW534, CETW591, CETW536, CETW543, CETW544, CETW553, CEBT470, CCES150, TWS150, TWS100, TWS125, CETW541, UAETW554, CETW528, CETW529, CETW537, CETW538, CETW539, CETW557, CETW561, CETW562, CETW563, CETW573, CETW574, CETW633, CETW635, CETW582, CETW583 (For model difference refer to section 2) FCC ID............................ : 2AMSOETW002 Measurement Standard....... : 47 CFR PART 2, Section 2.1093 Receipt Date of Samples.... : June 16, 2023 Date of Tested.................. : June 16, 2023 to June 21, 2023 Date of Report.................. : July 03, 2023 This report shows that above equipment is technically compliant with the requirements of the standards above. All test results in this report apply only to the tested sample(s). Without prior written approval of Dongguan Nore Testing Center Co., Ltd, this report shall not be reproduced except in full. Prepared by Rose Hu / Project Engineer Approved by Iori Fan / Authorized Signatory Report No.: NTC2306270F01 Page 2 of 9 Table of Contents 1. General Description of EUT ............................................................................................................................... 4 2. Test Facility and Location .................................................................................................................................. 6 3. Applicable Standards and References ............................................................................................................... 6 4. Maximum Permissible Exposure Limit ............................................................................................................... 7 5. RF Exposure Evaluation Results ....................................................................................................................... 9 Report No.: NTC2306270F01 Page 3 of 9 Revision History Report Number Description Issued Date NTC2306270F01 Initial Issue 2023-07-03 Report No.: NTC2306270F01 Page 4 of 9 1. General Description of EUT Product Information Product name: Wireless Earbuds Main Model Name: CETW527 Additional Model Name: CETW634, CETW501, CETW572, CETW531, CETW532, CETW526, CETW545, CETW534, CETW591, CETW536, CETW543, CETW544, CETW553, CEBT470, CCES150, TWS150, TWS100, TWS125, CETW541, UAETW554, CETW528, CETW529, CETW537, CETW538, CETW539, CETW557, CETW561, CETW562, CETW563, CETW573, CETW574, CETW633, CETW635, CETW582, CETW583 Model Difference: These models have the same circuit schematic, construction, PCB Layout and critical components. Their differences are model name, appearance and brand name due to trading purpose. S/N: 2306-2970 Brand Name: COBY, GAMEPUNK, UNDERGROUND AUDIO LABS Hardware Version: V00 Software Version: V00 Rating: DC 3.7V come from internal li-ion battery Classification: Class B Typical arrangement: Table-top / Portable I/O Port: Refer to the user manual Accessories Information Adapter: N/A Cable: N/A Other: N/A Report No.: NTC2306270F01 Page 5 of 9 Additional information Note: According to these model differences, all tests were performed on model CETW527 according to the manufacturer requirement. The EUT consists of charging box and earphones (left and right) two parts, this report only applies to the earphones unit. Both left and right earphones are exactly the same except the direction of the enclosure, therefore, all tests were performed on the left earphone. Remark: All the information above are provided by the manufacturer. More detailed feature of the EUT please refers to the user manual. Technical Specification Bluetooth Version: V5.3 Frequency Range: 2402-2480MHz Modulation Type: GFSK, π/4-DQPSK Number of Channel: 79 (refer to following channel list for details) Channel Space: 1MHz Antenna Type: PCB Antenna Antenna Gain: 2.69dBi The EUT does not support Bluetooth Low Energy feature in accordance with the manufacturer declaration. Report No.: NTC2306270F01 Page 6 of 9 2. Test Facility and Location Test Site : Dongguan Nore Testing Center Co., Ltd. (Dongguan NTC Co., Ltd.) Accreditations and Authorizations : The Laboratory has been assessed and proved to be in compliance with CNAS/CL01 Listed by CNAS, August 13, 2018 The Certificate Registration Number is L5795. The Certificate is valid until August 13, 2024 The Laboratory has been assessed and proved to be in compliance with ISO17025 Listed by A2LA, November 01, 2017 The Certificate Registration Number is 4429.01 Listed by FCC, November 06, 2017 Test Firm Registration Number: 907417 Listed by Industry Canada, June 08, 2017 The Certificate Registration Number. Is 46405-9743A Test Site Location : Building D, Gaosheng Science and Technology Park, Hongtu Road, Nancheng District, Dongguan City, Guangdong Province, China 3. Applicable Standards and References According to the specifications of the manufacturer, the EUT must comply with the requirements of the following standards: Test Standards: 47 CFR Part 1, 1.1307 47 CFR Part 2, 2.1093 KDB 447498 D04 v01 Report No.: NTC2306270F01 Page 7 of 9 4. Maximum Permissible Exposu…

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Antenna Specification Manufacturer: Hua Zicheng Technology Co., LTD. Address: 5th Floor, Building B, No.6, Dongcai Industrial Park, Gushu, Shenzhen model number：BZ-05 Antenna type Bipolar Antennas Working Frequency 2.4 ~ 2.5 GHz Central Frequency 2450 MHz Gain 2.69 DBi Gain max -8.09 DBi Impedance 50 Ohm Application Information O4Version 5.245.351 Total Time 7m 44s 750ms Additional Infor 4142897C06C1 Test Bluetooth TRP Frequency (MHz) 2400 2440 2480 TRP(dBm) -0.29 -1.12 -0.35 NHPRP(dBm) 45 -0.29 -1.12 -0.35 MAX Gain(dBi) 2.65 1.85 2.69 EIRP peak 2.75 1.85 2.74 Min(dBm) -7.43 -8.09 -7.42 Attenuation Horizontal 44.27 44.1 44.47 Attenuation Vertical 43.77 43.6 44.03 Test Result 2400 2440 2480

Report No.: NTC2306270FV00 Dongguan Nore Testing Center Co., Ltd. Address: Building D, Gaosheng Science and Technology park, Hongtu road, Nancheng district, Dongguan city, Guangdong province, China Web: www.ntc-c.com Tel:+86-769-2202 2444 Fax:+86-769-2202 2799 Page 1 of 43 FCC RADIO TEST REPORT Applicant............................ : Summit Electronics LLC Address.............................. : 1 Rewe Street, Brooklyn,New York,11211 United States Manufacturer....................... : Summit Electronics LLC Address.............................. : 1 Rewe Street, Brooklyn,New York,11211 United States Factory.............................. : Summit Electronics LLC Address.............................. : 1 Rewe Street, Brooklyn,New York,11211 United States Product Name....................... : Wireless Earbuds Brand Name.......................... : COBY, GAMEPUNK, UNDERGROUND AUDIO LABS Model No. ........................... : CETW527, CETW634, CETW501, CETW572, CETW531, CETW532, CETW526, CETW545, CETW534, CETW591, CETW536, CETW543, CETW544, CETW553, CEBT470, CCES150, TWS150, TWS100, TWS125, CETW541, UAETW554, CETW528, CETW529, CETW537, CETW538, CETW539, CETW557, CETW561, CETW562, CETW563, CETW573, CETW574, CETW633, CETW635, CETW582, CETW583 (For model difference refer to section 2) FCC ID................................ : 2AMSOETW002 Measurement Standard........... : 47 CFR FCC Part 15, Subpart C (Section 15.247) Receipt Date of Samples...... : June 16, 2023 Date of Tested...................... : June 16, 2023 to June 21, 2023 Date of Report....................... : July 03, 2023 This report shows that above equipment is technically compliant with the requirements of the standards above. All test results in this report apply only to the tested sample(s). Without prior written approval of Dongguan Nore Testing Center Co., Ltd, this report shall not be reproduced except in full. Prepared by Rose Hu / Project Engineer Approved by Iori Fan / Authorized Signatory Report No.: NTC2306270FV00 Page 2 of 43 Table of Contents 1. Summary of Test Result ........................................................................................................................... 4 2. General Description of EUT ...................................................................................................................... 5 3. Test Channels and Modes Detail ............................................................................................................... 8 4. Configuration of EUT ................................................................................................................................ 8 5. Modification of EUT .................................................................................................................................. 8 6. Description of Support Device ................................................................................................................... 9 7. Test Facility and Location ....................................................................................................................... 10 8. Applicable Standards and References ..................................................................................................... 11 9. Deviations and Abnormalities from Standard Conditions ........................................................................... 11 10. Test Conditions .................................................................................................................................... 12 11. Measurement Uncertainty ..................................................................................................................... 13 12. Sample Calculations ............................................................................................................................. 14 13. Test Items and Results ......................................................................................................................... 15 13.1 Conducted Emissions Measurement .................................................................................................... 15 13.2 Radiated Spurious Emissions and Restricted Bands Measurement ....................................................... 17 13.3 Channel Separation test ...................................................................................................................... 24 13.4 20dB Bandwidth ................................................................................................................................. 27 13.5 Hopping Channel Number ................................................................................................................... 30 13.6 Time of Occupancy (Dwell Time) ......................................................................................................... 32 13.7 Maximum Peak Output Power ............................................................................................................. 35 13.8 Band Edge Conducted Spurious Emission Measurement ...................................................................... 38 13.9 Antenna Requirement ......................................................................................................................... 42 14. Test Equipment List .............................................................................................................................. 43 Report No.: NTC2306270FV00 Page 3 of 43 Revision History Report Number Description Issued Date NTC2306270FV00 Initial Issue 2023-07-03 Report No.: NTC2306270FV00 Page 4 of 43 1. Summary of Test Result FCC Rules Description of Test Result Remarks §15.247(a)(1) Channel Separation test PASS --- §15.247(a)(1) 20dB Bandwidth PASS --- §15.247(a)(1)(iii) Hopping Channel Number PASS --- §15.247(a)(1)(iii) Time of Occupancy (Dwell Time) PASS --- §15.247(b) Max Peak output Power test PASS --- §15.247(d) Band edge test PASS --- §15.207 (a) AC Power Conducted Emiss…

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FCC ID: 2AMSOETW002 Test Photo Radiated emission (Below 30MHz) Radiated emission (30-1000MHz) FCC ID: 2AMSOETW002 Radiated emission (Above 1000MHz)