2AMSOCSTW43FD1True Wireless Rugged Speaker

True Wireless Rugged Speaker Instruction Manual CSTW43FD ® Table of Contents Read Me ......................................................................................... 3 English ........................................................................................... 4 Introduction ......................................................................................... 4 Package Contents ................................................................................. 4 Product Overview ................................................................................. 5 General Usage ...................................................................................... 5 Powering On or Off ................................................................................... 5 True Wireless Pairing ................................................................................ 5 Connecting Via Bluetooth ® ........................................................................ 6 Music Controls .......................................................................................... 7 Radio ......................................................................................................... 7 Phone Calls ............................................................................................... 8 AUX, Memory Card & USB Mode .............................................................. 8 Specifications ....................................................................................... 8 Inglés .............................................................................................. 9 Introducción ......................................................................................... 9 Contenidos del paquete ....................................................................... 9 Descripción del producto ................................................................... 10 Uso general ........................................................................................ 10 Encendido o apagado ............................................................................. 10 Verdadero emparejamiento inalámbrico ................................................ 11 Conexión a través de Bluetooth® ............................................................ 12 Controles de la música ............................................................................ 12 Radio ....................................................................................................... 13 Llamadas telefónicas ............................................................................... 13 AUX, tarjeta de memoria y modo USB .................................................... 13 Especificaciones ................................................................................. 14 SUMMIT ELECTRONICS LLC ONE YEAR LIMITED .................. 14 Contact Us .......................................................................................... 16 Read Me Date Code: 2023-10 12.If repairs are necessary, please use qualified service personnel. Repairs may be necessary if the device has been damaged in any way. Such as the power-supply cord or plug being damaged, the device being exposed to r ain or moisture, objects falling into the device, t he device does not operate normally, or has been dropped. 13.Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has b een spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. 1.Read these instructions. 2.Keep these instructions. 3.Heed all warnings. 4.Follow all instructions. 5.Do not use this apparatus near water. 6.Clean only with dry cloth 7.Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. 8.Do not install near any heat sources such as radiators, heat r egisters, stoves,orother apparatus (i ncluding amplifiers) that produce heat. 9.Protect the power cord from being walked on or pinched particularly at plugs, and the point where they exit from the apparatus. 10.Only use attachments/accessories specified by the manufacturer. 11.Unplug this apparatus during lightning storms or when unused for long periods of time. FCC Notice to Users FCC ID: 2AMSOCSTW43FD1 Caution: 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 w ith the limits for a Class B digital device, pursuant to p art 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 f requency energy and, if not installed and used in accor dance with t he instructions, may cause harmful interference t o radio communications, however there i s 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. •Increasethe separati on between the equipmentand receiver. •Connect the equipment into an outlet on a circuit different from that to which the receiver isconnected. •Consult the dealer or an experienced radio/TVtechnicianfor Help. The device complies with part 15 of the FCCRules. Operation is subject to the followingtwo conditions: thisdevicemay not cause harmful interference, andthis device must accept any interference received, including interference that may cause un desired operation. The Bluetooth ® word mark and logos are registered trademarks 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: True Wireless Rugged Speaker Grantee code: FCC ID: FRN: Contact Name: Address: Telephone No: Email: 2AMSO 2AMSOCSTW43FD1 0026659094 Moshe Dancikier 1 Rewe Street, Brooklyn,New York,11211 United States 212-260-0666 [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: 2023/09/16 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: 2AMSOCSTW43FD1 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. [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. ii. [Summit Electronics LLC] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is not] (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing “covered” equipment. 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 on the Covered List as an entity producing “covered” equipment . Date: 2023-09-16 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 1 Rewe Street, Brooklyn,New York,11211 United States Product Similarity Declaration Product name: True Wireless Rugged Speaker Model name: CSTW43FD, CSTW432BK, CSTW432GRO, CSTW432WBL, AASTW632BLK, AASTW632ORG, AASTW632WBL, CSTW432LB, CSTW432NVY, CSTW432RD, CSTW432YL FCC ID: 2AMSOCSTW43FD1 We (Summit Electronics LLC) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.,), same mechanical structure and design (including product enclosure, materials, etc.,), the only difference is the model name due to trading purpose. Please kindly handle on the project. Signature: Name: Moshe Dancikier Title: Sourcing 2023/09/16

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: True Wireless Rugged Speaker Model Number: CSTW43FD, CSTW432BK, CSTW432GRO, CSTW432WBL, AASTW632BLK, AASTW632ORG, AASTW632WBL, CSTW432LB, CSTW432NVY, CSTW432RD, CSTW432YL FCC Identifier: 2AMSOCSTW43FD1 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: 9/16/2023 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: 9/16/2023 Subject: Request for Confidentiality FCC ID: 2AMSOCSTW43FD1 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

FCC ID: 2AMSOCSTW43FD1 External photos FCC ID: 2AMSOCSTW43FD1 FCC ID: 2AMSOCSTW43FD1 FCC ID: 2AMSOCSTW43FD1

Input: DC 5V 1A(MAX) 18 2023-10 2AMSOCSTW43FD1 Input: DC 5V 1A(MAX) 18 2023-10 2AMSOCSTW43FD1

FCC ID: 2AMSOCSTW43FD1 Internal photos FCC ID: 2AMSOCSTW43FD1 RF Antenna RF Chip FCC ID: 2AMSOCSTW43FD1

Report No.: NTC2308541F01 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 11 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 ......................... : E-far Digital (Shenzhen)Co., Ltd. Address ......................... : 8th floor, building 1, No.8, Yigong 5th road, Loucun, Gongming street, Guangming new district, Shenzhen, China Product Name.................. : True Wireless Rugged Speaker Brand Name..................... : COBY, Acoustic Amor Model No. ........................ : CSTW43FD, CSTW432BK, CSTW432GRO, CSTW432WBL, AASTW632BLK, AASTW632ORG, AASTW632WBL, CSTW432LB, CSTW432NVY, CSTW432RD, CSTW432YL (For model difference refer to section 2.) FCC ID............................ : 2AMSOCSTW43FD1 Measurement Standard...... : 47 CFR PART 2, Section 2.1093 Receipt Date of Samples.... : August 31, 2023 Date of Tested.................. : August 31, 2023 to September 08, 2023 Date of Report.................. : September 18, 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 Julie Xiao / Project Engineer Approved by Iori Fan / Authorized Signatory Report No.: NTC2308541F01 Page 2 of 11 Table of Contents 1. General Description of EUT ................................................................................................................................ 4 2. Test Facility and Location ................................................................................................................................... 6 3. Applicable Standards and References ................................................................................................................ 7 4. Maximum Permissible Exposure Limit ................................................................................................................ 8 5. RF Exposure Evaluation Results ...................................................................................................................... 11 Report No.: NTC2308541F01 Page 3 of 11 Revision History Report Number Description Issued Date NTC2308541F01 Initial Issue 2023-09-18 Report No.: NTC2308541F01 Page 4 of 11 1. General Description of EUT Product Information Product name: True Wireless Rugged Speaker Main Model Name: CSTW43FD Additional Model Name: CSTW432BK, CSTW432GRO, CSTW432WBL, AASTW632BLK, AASTW632ORG, AASTW632WBL, CSTW432LB, CSTW432NVY, CSTW432RD, CSTW432YL Model Difference: These models have the same circuit schematic, construction, PCB Layout and critical components. The difference is model number due to trading purpose. S/N: 2308-4256 Brand Name: COBY, Acoustic Amor Hardware version: Not stated Software version: Not stated Rating: DC 5V from USB port DC 3.7V from internal battery Typical Arrangement: Table-top I/O Port: Refer to the user manual Accessories Information Adapter: N/A Cable: USB cable: 0.45m, unshielded, detachable Other: N/A Additional Information Note: According to these model differences, all tests were performed on model CSTW43FD according to the manufacturer requirement. Remark: All the information above are provided by the manufacturer. More detailed feature of the EUT please refers to the user manual. Report No.: NTC2308541F01 Page 5 of 11 Technical Specification Bluetooth Version: V5.3 Frequency Range: 2402-2480MHz Modulation Type: GFSK, π/4-DQPSK, 8DPSK Number of Channel: 79 (refer to following channel list for details) Channel Space: 1MHz Antenna Type: PCB antenna Number of Antenna 1 Antenna Gain: -0.68 dBi (Declared by the manufacturer) The EUT does not support Bluetooth Low Energy feature in accordance with the manufacturer declaration. Report No.: NTC2308541F01 Page 6 of 11 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 Report No.: NTC2308541F01 Page 7 of 11 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.: NTC2308541F01 Page 8 of 11 4. Maximum Permissible Exposure Limit According to 47 CFR Part 1, 1.1307, for single RF sources (i.e., any single fixed RF source, mobile device, or portable device, as defined in paragraph (b)(2) of this section): A single RF source is exempt if: 47 CFR Part 1, 1.1307 (A) The available maximum time- averaged power is no more than 1 mW, regardless of separation distance. This exemption may not be used in conjunction with other exemption criteria other than those in paragraph (b)(3)(ii)(A) of this section…

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Inverted F Antenna Specification Summary ITEM ANT SPEC Model Name 2.4G ANT Horizontal Vertical 2400MHz 2450MHz 2500MHz 2400MHz 2450MHz 2500MHz Center Frequency -1.73 -0.84 -0.68 -6.15 -3.70 -2.32 MAX. Gain -0.68 Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Length 38.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -1.73178 -30.0815 -8.48713 2450 -0.845801 -38.5605 -7.88012 2500 -0.685586 -24.0318 -6.79139 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -6.1530 -24.1420 -13.0295 2450 -3.7054 -26.5836 -10.6700 2500 -2.32122 -30.4301 -9.70536 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

Report No.: NTC2308541FV00 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 51 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............................... : E-far Digital (Shenzhen)Co., Ltd. Address............................. : 8th floor, building 1, No.8, Yigong 5th road, Loucun, Gongming street, Guangming new district, Shenzhen, China Product Name....................... : True Wireless Rugged Speaker Brand Name.......................... : COBY, Acoustic Amor Model No. ........................... : CSTW43FD, CSTW432BK, CSTW432GRO, CSTW432WBL, AASTW632BLK, AASTW632ORG, AASTW632WBL, CSTW432LB, CSTW432NVY, CSTW432RD, CSTW432YL (For model difference refer to section 2.) FCC ID................................ : 2AMSOCSTW43FD1 Measurement Standard........... : 47 CFR FCC Part 15, Subpart C (Section 15.247) Receipt Date of Samples...... : August 31, 2023 Date of Tested...................... : August 31, 2023 to September 08, 2023 Date of Report....................... : September 18, 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 Julie Xiao / Project Engineer Approved by Iori Fan / Authorized Signatory Report No.: NTC2308541FV00 Page 2 of 51 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 ....................................................... 19 13.3 Channel Separation test ...................................................................................................................... 27 13.4 20dB Bandwidth ................................................................................................................................. 31 13.5 Hopping Channel Number ................................................................................................................... 35 13.6 Time of Occupancy (Dwell Time) ......................................................................................................... 37 13.7 Maximum Peak Output Power ............................................................................................................. 41 13.8 Band Edge Conducted Spurious Emission Measurement ...................................................................... 45 13.9 Antenna Requirement ......................................................................................................................... 50 14. Test Equipment List .............................................................................................................................. 51 Report No.: NTC2308541FV00 Page 3 of 51 Revision History Report Number Description Issued Date NTC2308541FV00 Initial Issue 2023-09-18 Report No.: NTC2308541FV00 Page 4 of 51 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 Emission PASS --- §15.247(d),§15.209, §15.205 Radiated Emission PASS --- §15.203 Antenna Requirement PASS --- §…

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FCC ID: 2AMSOCSTW43FD1 Test Photo Radiated emission (Below 30MHz) Radiated emission (30-1000MHz) FCC ID: 2AMSOCSTW43FD1 Radiated emission (Above 1000MHz) Conducted Emission