2A5SQ-PT875BTAmplifier

MODEL:PT875BT FCC Warning 15.19 Labeling requirements. 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. 15.21 Information to user. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 15.105 Information to the user. 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 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. FCC RF Radiation Exposure Statement: 1.This Transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. 2.This equipment complies with RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body. IC Warning This device complies with Industry Canada’s licence-exempt RSSs. Operation is subject to the following two conditions: (1)This device may not cause interference; (2)This device must accept any interference, including interference that may cause undesired operation of the device. Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes: (1)l'appareil ne doit pas produire de brouillage, et (2)l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. The information listed above provides the user with information needed to make him or her aware of a RF exposure, and what to do to assure that this radio operates within the FCC exposure limits of this radio. The device complies with RF specifications when the device used at 20cm from the body. Third-party belt-clips, holsters, and similar accessories used by this device should not contain any metallic components. Body-worn accessories that do not meet these requirements may not comply with RF exposure requirements and should be avoided. Use only the supplied or an approved antenna.

Kinma High-Tech Co., Ltd Section 2.911(d)(5)(i) Certification – Equipment Type Company name: Kinma High-Tech Co., Ltd Address: Flat B2, 4/F, Block AB, F4.8BId., Tian'an Cyber Park, ShenZhen, China Product Name: Amplifier FCC ID: 2A5SQ-PT875BT Model(s): PT875BT 2.911(d)(5)(i) Equipment Type We, [Kinma High-Tech Co., Ltd ] (“the applicant”) certify that the equipment for which authorization is sought through certification is not: • Prohibited from receiving an equipment authorization pursuant to § 2.903; of the FCC rules. • Identified as an equipment type in the “Covered List” NOTE 1 Yours sincerely, Name: Nai Kang Huang Date: 2024-0 2-18 Title and Company name: Manager NOTE 1 “Covered List ”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the 2.911 (d)(5)(i) Equipment Type Attestation v1.2

Kinma High-Tech Co., Ltd Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: Kinma High-Tech Co., Ltd Address: Flat B2, 4/F, Block AB, F4.8BId., Tian'an Cyber Park, ShenZhen, China Product Name: Amplifier FCC ID: 2A5SQ-PT875BT Model(s): PT875BT 2.911(d)(5)(ii) Applicant filing We, [Kinma High-Tech Co., Ltd ] (“the applicant”) certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the “Covered List” NOTE 2 , established pursuant to § 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Name: Nai Kang Huang Date: 2024-0 2-18 Title and Company name: Manager NOTE 1 Delete option not applicable to this application. NOTE 2 “Covered List ”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the 2.911 (d)(5)(ii) Applicant Attestation v1.2

Kinma High-Tech Co., Ltd Section 2.911(d)(7) USA Agent for Service of Process Company name: Kinma High-Tech Co., Ltd Address: Flat B2, 4/F, Block AB, F4.8BId., Tian'an Cyber Park, ShenZhen, China Product Name: Amplifier FCC ID: 2A5SQ-PT875BT Model(s): PT875BT 2.911(d)(7) USA Designated Agent for Service of Process We, [ Kinma High-Tech Co., Ltd ] (“the applicant”) designate [ SOUND AROUND INC.] NOTE1 for the purpose of accepting service of process on behalf of the applicant. Applicant consent: We Acknowledge our consent to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address of the designated agent and acknowledge our acceptance of our obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Agent obligation: We Acknowledge our obligation to accept service of process in the United States for matters related to the applicable equipment at our physical U.S. address and email address for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. USA Agent Company name: SOUND AROUND INC. Address: 1600,63 RD STREET, BROOKLYN NEW YORK, NY 11204 United States FRN: 0032160020 Contact Name: JERRY BRACH Telephone No: (718) 236-8000 Email: [email protected] Applicant Company name: Kinma High-Tech Co., Ltd Address: Flat B2, 4/F, Block AB, F4.8BId., Tian'an Cyber Park, ShenZhen, China FRN: 0032120602 FCC Grantee Code: 2A5SQ Contact Name: Nai Kang Huang Telephone No: +86-755-88359192 Signature: Title: Manager Signature: Title: Manager Date: 2024-02-18 Date: 2024-02-18 NOTE 1: An applicant located in the United States may designate itself as the agent for service of process. 2.911 (d)(7)USA Agent v1.2 Kinma High-Tech Co., Ltd Reference; Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threat s-to -the-communications-supply-chain-through-the 2.911 (d)(7)USA Agent v1.2

Kinma High-Tech Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2024-02-18 Subject; Request for Long Term Confidentiality FCC ID: 2A5SQ-PT875BT 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 BOM 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: Nai Kang Huang Title: Manager

Letter of Authorization Company: Kinma High-Tech Co., Ltd Address: Flat B2, 4/F, Block AB, F4.8BId., Tian'an Cyber Park, ShenZhen, China Product Name: Amplifier Model Number: PT875BT, PT694BT, PT865BT ISED ID Number: 31804-PT875BT We authorize MiCOM Labs Inc, 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the above named equipment. Any individual within MiCOM Labs is authorized to act on our behalf and take action on the application. We declare that MiCOM Labs Inc, 575 Boulder Court, Pleasanton, California 94566, USA, 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 MiCOM Labs on our behalf shall have the same effect as acts of our own. Name: Nai Kang Huang Date: 2024-02-18 Title: Manager

Model: PT875BT External Model: PT875BT Model: PT875BT Model: PT875BT

Label Location

Model: PT875BT Internal Model: PT875BT Model: PT875BT Model: PT875BT Model: PT875BT Model: PT875BT Model: PT875BT Model: PT875BT Model: PT875BT Model: PT875BT BT ANT

Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 1 of 7 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China RF Exposure Report For Applicant Name: Kinma High-Tech Co., Ltd Address: Flat B2, 4/F, Block AB, F4.8BId., Tian'an Cyber Park, ShenZhen, China EUT Name: Amplifier Brand Name: PYLE Model Number: PT875BT Issued By Company Name: BTF Testing Lab (Shenzhen) Co., Ltd. Address: F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Report Number: BTF231208R00203 Test Standards: 47 CFR Part 2 Subpart J Section 2.1091 FCC ID: 2A5SQ-PT875BT Test Conclusion: Pass Test Date: 2023-12-11 to 2024-01-19 Date of Issue: 2024-01-20 Prepared By: Gavin Cui / Project Engineer Date: 2024-01-20 Approved By: Ryan.CJ / EMC Manager Date: 2023-01-20 Note: All the test results in this report only related to the testing samples. Which can be duplicated completely for the legal use with approval of applicant; it shall not be reproduced except in full without the written approval of BTF Testing Lab (Shenzhen) Co., Ltd., All the objections should be raised within thirty days from the date of issue. To validate the report, you can contact us. Test Report Number: BTF231208R00203 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 2 of 7 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Revision History Version Issue Date Revisions Content R_V0 2024-1-20 Original Note: Once the revision has been made, then previous versions reports are invalid. Test Report Number: BTF231208R00203 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 3 of 7 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Table of Contents 1. Introduction ........................................................................................................................................................................... 4 1.1 Identification of Testing Laboratory ...................................................................................................................... 4 1.2 Identification of the Responsible Testing Location ............................................................................................. 4 1.3 Laboratory Condition .............................................................................................................................................. 4 1.4 Announcement ........................................................................................................................................................ 4 2. Product Information .............................................................................................................................................................. 5 2.1 Application Information .......................................................................................................................................... 5 2.2 Manufacturer Information ....................................................................................................................................... 5 2.3 Factory Information ................................................................................................................................................. 5 2.4 General Description of Equipment under Test (EUT) .......................................................................................... 5 3. Test Requirement ................................................................................................................................................................. 6 3.1 Assessment Result ................................................................................................................................................. 6 Test Report Number: BTF231208R00203 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 4 of 7 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China 1. Introduction 1.1 Identification of Testing Laboratory Company Name: BTF Testing Lab (Shenzhen) Co., Ltd. Address: F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Phone Number: +86-0755-23146130 Fax Number: +86-0755-23146130 1.2 Identification of the Responsible Testing Location Test Location: BTF Testing Lab (Shenzhen) Co., Ltd. Address: F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Description: All measurement facilities used to collect the measurement data are located at F101,201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China FCC Registration Number: 518915 Designation Number: CN1330 1.3 Laboratory Condition Ambient Temperature: 20°C to 25°C Ambient Relative Humidity: 45% to 55% Ambient Pressure: 100 kPa to 102 kPa 1.4 Announcement (1) The test report reference to the report template version v0. (2) The test report is invalid if not marked with the signatures of the persons responsible for preparing, reviewing and approving the test report. (3) The test report is invalid if there is any evidence and/or falsification. (4) This document may not be altered or revised in any way unless done so by BTF and all revisions are duly noted in the revisions section. (5) Content of the test re…

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Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 1 of 68 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China RF Test Report For Applicant Name: Kinma High-Tech Co., Ltd Address: Flat B2, 4/F, Block AB, F4.8BId., Tian'an Cyber Park,ShenZhen,China EUT Name: Amplifier Brand Name: PYLE Model Number: PT875BT Issued By Company Name: BTF Testing Lab (Shenzhen) Co., Ltd. Address: F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Report Number: BTF231208R00202 Test Standards: 47 CFR Part 15.247 FCC ID: 2A5SQ-PT875BT Test Conclusion: Pass Test Date: 2023-12-11 to 2024-01-19 Date of Issue: 2024-01-20 Prepared By: Gavin Cui / Project Engineer Date: 2024-01-20 Approved By: Ryan.CJ / EMC Manager Date: 2024-01-20 Note: All the test results in this report only related to the testing samples. Which can be duplicated completely for the legal use with approval of applicant; it shall not be reproduced except in full without the written approval of BTF Testing Lab (Shenzhen) Co., Ltd., All the objections should be raised within thirty days from the date of issue. To validate the report, you can contact us. Test Report Number: BTF231208R00202 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 2 of 68 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Revision History Version Issue Date Revisions Content R_V0 2024-01-20 Original Note: Once the revision has been made, then previous versions reports are invalid. Test Report Number: BTF231208R00202 Total or partial reproduction of this document without permission of the Laboratory is not allowed. Page 3 of 68 BTF Testing Lab (Shenzhen) Co., Ltd. F101, 201 and 301, Building 1, Block 2, Tantou Industrial Park, Tantou Community, Songgang Street, Bao'an District, Shenzhen, China Table of Contents 1 INTRODUCTION ..........................................................................................................................................5 1.1 Identification of Testing Laboratory ...............................................................................................5 1.2 Identification of the Responsible Testing Location ......................................................................5 1.3 Announcement .................................................................................................................................5 2 PRODUCT INFORMATION ..........................................................................................................................6 2.1 Application Information ...................................................................................................................6 2.2 Manufacturer Information ................................................................................................................6 2.3 Factory Information .........................................................................................................................6 2.4 General Description of Equipment under Test (EUT) ...................................................................6 2.5 Technical Information ......................................................................................................................6 3 SUMMARY OF TEST RESULTS .................................................................................................................7 3.1 Test Standards ..................................................................................................................................7 3.2 Uncertainty of Test ...........................................................................................................................7 3.3 Summary of Test Result ..................................................................................................................7 4 TEST CONFIGURATION .............................................................................................................................8 4.1 Test Equipment List .........................................................................................................................8 4.2 Test Auxiliary Equipment ............................................................................................................. 10 4.3 Test Modes ..................................................................................................................................... 10 5 EVALUATION RESULTS (EVALUATION) ................................................................................................. 11 5.1 Antenna requirement ..................................................................................................................... 11 6 RADIO SPECTRUM MATTER TEST RESULTS (RF) .............................................................................. 12 6.1 Conducted Emission at AC power line ....................................................................................... 12 6.1.1 E.U.T. Operation: ................................................................................................................. 12 6.1.2 Test Setup Diagram: ............................................................................................................ 12 6.1.3 Test Data: ............................................................................................................................ 13 6.2 Occupied Bandwidth .................................................................................................................... 15 6.2.1 E.U.T. Operation: .............................................................................................................…

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Inverted F Antenna Specification Summary ITEMANT SPEC Model Name 2.4G ANT HorizontalVertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.26-0.76-0.58-5.25-2.46-1.86 MAX. Gain -0.58dBi PolarizationHorizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance50 Ohm Antenna Length 38.20mm Antenna Photo & Length (mm) Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain (dB) Frequency (MHz) MaxMinAvg 2400-1.26174-30.0801-7.18716 2450-0.765802-36.5604-7.48023 2500-0.585582-22.0315-6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain (dB) Frequency (MHz) MaxMinAvg 2400-5.2537-22.1424-12.4294 2450-2.4652-24.5837-10.4702 2500-1.86120-29.5214-9.20432

Model: PT875BT Conducted Emission at AC power line Emissions in frequency bands (below 1GHz) Model: PT875BT Band edge emissions (Radiated) Emissions in frequency bands (above 1GHz)