Y4O-TXP9Portable PA with BT and battery

4 6 12 HOURS J K M L N O P J K M L N O P 12 HOURS 6 6 J K M L N O P J K M L N O P J K M L N O P Important Safety Instructions ( English ) 1. Read and keep these instructions. Heed all warnings and follow all Instructions. 2. Warning (if applicable): Please refer to any important info rmation (e.g., electrical, safety, etc.) printed on the exterior bottom enclosure or rear panel before installing or operating the product. 3. Clean only with dry cloth. 4. Water and Moisture (if applicable): Do not use this apparatus near water. The apparatus shall not be exposed to dripping or splashing and that no objects filled with liquids, such as vases, shall be placed on the apparatus. Electrical equipment should NEVER be kept or stored in damp environments. 5. (If applicable) Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. Do not install this equipment in a confin ed or “boxed-in” space such as a bookcase or similar unit, and maintain good ventilation conditions. The ventilation should not be impeded by covering the ventilation openings with items such as newspaper, tablecloths, curtains, etc. 6. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Do not place expose d flame sources such as lighted candles on the apparatus. 7. (If applicable) This product should be connected to a power supply only of the type described in these operating instructions, or as marked on the unit. 8. (If applicable) Be careful not to damage the power cord. When moving or not using the appliance, secure the power cord (e.g., wrap it with a cable tie). Before using it again, make sure the power cord has not been damaged. If the power cord has been damaged at all, bring the unit and cord to a qualified service technician for repair or replacement as specified by the manufacturer. 9. Unplug this apparatus during lightning storms or when unused for long periods of time. 10. Only use attachment/accessories specified by the manufacturer. 11. (If applicable) Use only the cart, stand, tripod, bracket or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over. 12. Internal/External Voltage Selectors (if applicable): Internal or external voltage selector switches, if any, should only be reset and re-equipped with a proper plug for alternative voltage by a qualified service technician. Do not attempt to alter this yourself. 13. Caution (if applicable): Danger of explosion if battery is incorr ectly replaced. Replace only with the same or equivalent type. Batteries (a battery pack or an in stalled battery) shall not be exposed to excessive heat such as sunshine, fire, etc. 14. (If applicable) Do not defeat the safety purpose of the polarized or grounding-type plug. 15. Protective earthing terminal (if applicable): The ap paratus should be connected to a mains socket outlet with a protective earthing connection. • Denmark ( Danmark ): Apparatets stikprop skal tilsluttes en stikkontakt med jord, som giver forbindelse til stikproppens jord. • Finland ( Suomi ): Laite on liitettävä suojakoskettimilla varustettuun pistorasiaan. • Norway ( Norge ): Apparatet må tilkoples jordet stikkontakt. • Sweden ( Sverige ): Apparaten skall anslutas till jordat uttag. 16. For Class II apparatus only : This symbol means the equipment is a Class II or double-insulated electrical appliance. It has been designed in such a way that it does not require a safety connection to electrical earth. When servicing use only identi cal replacement parts installed by an instructed person or with the use of ready-made leads or cords. 17. Warning (if applicable): Provide an earthing connection be fore the mains plug is connected to the mains. When disconnecting the earthing connection, be sure to disconnect it after pulling the mains plug out from the mains. 18. (If applicable) Where the mains plug or an applian ce coupler is used as the disconnect device, the disconnect device shall remain readily operable . 19. Warning (if applicable): To prevent possible hearing damage, do not listen at high volume levels for long periods. 20. This apparatus is for professional use only . Intended operational climate: moderate. Safety Notices CAUTION : TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE ANY COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIE D SERVICE PERSONNEL ONLY. DANGEROUS VOLTAGE : The lightning flash with arrowhead symbol within the equilateral triangle is intended to alert the user to the presence of un-insulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock. INSTRUCTIONS : The exclamation point within the equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instru ctions in the literature acco mpanying this appliance. CAUTION ( for U.S.A. & CANADIAN models only ): TO PREVENT ELECTRIC SH OCK DO NOT USE THIS (POLARIZED) PLUG WITH AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE. NOTICE CONCERNING LASER PRODUCTS : DANGER : INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCK FAILED OR DEFEATED. AVOID DIRECT EXPOS URE TO BEAM. USE OF CONTROLS OR ADJUSTMENTS OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. NOTICE CONCERNING FCC REGULATIONS : You are cautioned that changes or modifications not expressly approved by the part responsible for compliance could void the user’s authority to operate the equipment. 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 equipm…

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INMUSIC BRANDS INC Covered Equipment Certification Attestation Letter 6/14/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: Y4O-TXP9 INMUSIC BRANDS INC (“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. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List , the applicant should include an explanation on why the equipment is not “covered” equipment. Signed: Printed name: Hill Lien Title: Director of Compliance Company Name: INMUSIC BRANDS INC Date: 6/14/2023

INMUSIC BRANDS INC Covered Equipment Certification Attestation Letter 6/14/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: Y4O-TXP9 INMUSIC BRANDS INC (“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. Signed: Printed name: Hill Lien Title: Director of Compliance Company Name: INMUSIC BRANDS INC Date: 6/14/2023

INMUSIC BRANDS INC * the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter 6/14/2023 TO: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 ATTN.: Reviewing Engineer FCC ID: Y4O-TXP9 FRN of applicant: 0022102461 Per section 2.911(d)(7) of the FCC rules, INMUSIC BRANDS INC (“the applicant”) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: Company Name: INMUSIC BRANDS INC FCC Registration Number (FRN): 0022102461 Physical U.S. Company Address: 200 SCENIC VIEW DRIVE, SUITE 201, CUMBERLAND, Rhode Island 02864, United States Contact Person: Hill Lien Agent Email Address: [email protected] The above contact person accepts the obligation for service of process. The applicant 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 the equipment. Applicant Signed: Agent Signed (if different from Applicant) : Signed: Signed: Printed name: Hill Lien Printed name: Click here to enter text. Title: Director of Compliance Title: Click here to enter text. Company Name: INMUSIC BRANDS INC Company Name: Click here to enter text. Date: 6/14/2023 Date: 6/14/2023

DATE : 10/31/2022 F ederal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint EST Technology Co., Ltd. Address:Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with INMUSIC BRANDS INC Address: 200 SCENIC VIEW DRIVE, SUITE 201, CUMBERLAND, Rhode Island 02864, United States < Signature> Name：Hill Lien Title：Director of Compliance Applicant Company：INMUSIC BRANDS INC

D ATE : 10/31/2022 E quipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 F CC ID: Y4O-TXP9 Product Name: Portable PA with BT and battery Request for Confidentiality P ursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential: •S chematics •Block diagram •Operation description Thes e materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. < Signature> Name：Hill Lien Title： Director of Compliance Company：INMUSIC BRANDS INC

INMUSIC BRANDS INC I , the undersigned, Hill Lien: The following models have the same technical construction including circuit diagram, PCB Layout, components and component layout, all electrical construction and mechanical construction, except the different model name. 1.BUSKER 2.TXP9 3.BUSKER******** (“ *” can be “a-z”, “A-Z”, “0-9”, blank, “-”) 4.TXP****** (“ *” can be “a-z”, “A-Z”, “0-9”, blank, “-”) F CC ID: Y4O-TXP9 S incerely, C lient’s signature : C lient’s name / title: Hill Lien/ Director of Compliance Contact information / address: 200 SCENIC VIEW DRIVE, SUITE 201, CUMBERLAND, Rhode Island 02864, United States Telephone: +866-2-2717-2389 Fax No.: +866-2-2717-2389 *************************************************************************

External Photos M/N: Busker External Photos M/N: Busker External Photos M/N: Busker External Photos M/N: Busker

Internal Photos M/N: BUSKER Internal Photos M/N: BUSKER Internal Photos M/N: BUSKER Internal Photos M/N: BUSKER Internal Photos M/N: BUSKER Internal Photos M/N: BUSKER Internal Photos M/N: BUSKER Internal Photos M/N: BUSKER Internal Photos M/N: BUSKER Bluetooth Antenna Bluetooth Antenna Connector

FCC ID: Y4O-TXP9 EST Technology Co. ,Ltd Report No. ESTE-R2210084 Page 1 of 4 FCC 47 CFR MPE REPORT INMUSIC BRANDS INC Portable PA with BT and battery Model Number: BUSKER Additional Model: TXP9, BUSKER********, TXP****** FCC ID: Y4O-TXP9 Applicant: INMUSIC BRANDS INC Address: 200 SCENIC VIEW DRIVE, SUITE 201, CUMBERLAND, Rhode Island 02864, United States Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2210084 Date of Test: Sep. 14~Oct. 25, 2022 Date of Report: Oct. 26, 2022 FCC ID: Y4O-TXP9 EST Technology Co. ,Ltd Report No. ESTE-R2210084 Page 2 of 4 Maximum Permissible Exposure 1. Applicable Standards Systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess limit for maximum permissible exposure. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as a mobile device whereby a distance of 0.2m normally can be maintained between the user and the device. 1.1. Limits for Maximum Permissible Exposure (MPE) (a) Limits for Occupational/Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/cm 2 ) Averaging Times ︱E︱ 2 ,︱H︱ 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842/f 4.89/f (900/f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-10000 5 6 (b) Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/cm 2 ) Averaging Times ︱E︱ 2 ,︱H︱ 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-10000 1.o 30 Note: f=frequency in MHz; *Plane-wave equivalent power density FCC ID: Y4O-TXP9 EST Technology Co. ,Ltd Report No. ESTE-R2210084 Page 3 of 4 1.2. MPE Calculation Method E (V/m) = d G × P × 30 Power Density: Pd (W/m 2 ) = 377 E 2 E = Electric Field (V/m) P = Peak RF output Power (W) G = EUT Antenna numeric gain (numeric) d = Separation distance between radiator and human body (m) The formula can be changed to Pd = 2 d × 377 G × P × 30 From the peak EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the gain of the used antenna, the RF power density can be obtained FCC ID: Y4O-TXP9 EST Technology Co. ,Ltd Report No. ESTE-R2210084 Page 4 of 4 2. Conducted Power Result Mode Frequency (MHz) Peak output power (dBm) Peak output power (mW) GFSK 2402 7.55 5.689 2441 5.51 3.556 2480 3.73 2.360 π/4-DQPSK 2402 7.65 5.821 2441 5.39 3.459 2480 3.70 2.344 8-DPSK 2402 7.65 5.821 2441 5.38 3.451 2480 3.72 2.355 BLE 2402 7.18 5.224 2440 4.80 3.020 2480 3.06 2.023 3. Calculated Result and Limit Mode Peak output power (dBm) Target power (dBm) MAX Target power (dBm) Antenna gain Power Density (S) (mW /cm2) Limited of Power Density (S) (mW /cm2) Test Result (dBi) (Linear) 2.4G Band GFSK 7.55 7±1 8 2 1.585 0.0020 1 Complies π/4-DQPSK 7.65 7±1 8 2 1.585 0.0020 1 Complies 8-DPSK 7.65 7±1 8 2 1.585 0.0020 1 Complies BLE 7.18 7±1 8 2 1.585 0.0020 1 Complies End of Test Report

FCC ID: Y4O-TXP9 EST Technology Co., Ltd Report No. ESTE-R2210082 Page 1 of 83 FCC PART 15C TEST REPORT FOR CERTIFICATION On Behalf of INMUSIC BRANDS INC Portable PA with BT and battery Model Number: BUSKER Additional Model: TXP9, BUSKER********, TXP****** FCC ID: Y4O-TXP9 Applicant : INMUSIC BRANDS INC Address: 200 SCENIC VIEW DRIVE, SUITE 201, CUMBERLAND, Rhode Island 02864, United States Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2210082 Date of Test: Sep. 14~Oct. 25, 2022 Date of Report: Oct. 26, 2022 FCC ID: Y4O-TXP9 EST Technology Co., Ltd Report No. ESTE-R2210082 Page 2 of 83 TABLE OF CONTENTS Description Page TEST REPORT VERIFICATION......................................................................................................................... 3 1. GENERAL INFORMATION ................................................................................................................. 5 1.1. Description of Device (EUT) ........................................................................................................... 5 1.2. Antenna Information ........................................................................................................................ 5 1.3. Information of RF Cable .................................................................................................................. 5 2. SUMMARY OF TEST ......................................................................................................................... 6 2.1. Summary of test result ...................................................................................................................... 6 2.2. Test Facilities ................................................................................................................................... 7 2.3. Measurement uncertainty ................................................................................................................. 8 2.4. Assistant equipment used for test ..................................................................................................... 8 2.5. Block Diagram ................................................................................................................................. 8 2.6. Test mode ......................................................................................................................................... 9 2.7. Channel List ................................................................................................................................... 10 2.8. Power Setting of Test Software ...................................................................................................... 10 2.9. Test Equipment ............................................................................................................................... 11 3. MAXIMUM PEAK OUTPUT POWER ................................................................................................. 13 3.1. Limit ............................................................................................................................................... 13 3.2. Test Setup ....................................................................................................................................... 13 3.3. Spectrum Analyzer Setting ............................................................................................................. 13 3.4. Test Procedure ................................................................................................................................ 13 3.5. Test Result ...................................................................................................................................... 13 4. 20 DB BANDWIDTH ....................................................................................................................... 14 4.1. Limit ............................................................................................................................................... 14 4.2. Test Setup ....................................................................................................................................... 14 4.3. Spectrum Analyzer Setting ............................................................................................................. 14 4.4. Test Procedure ................................................................................................................................ 14 4.5. Test Result ...................................................................................................................................... 14 5. CARRIER FREQUENCY SEPARATION .............................................................................................. 15 5.1. Limit ............................................................................................................................................... 15 5.2. Test Setup ....................................................................................................................................... 15 5.3. Spectrum Analyzer Setting ............................................................................................................. 15 5.4. Test Procedure ................................................................................................................................ 15 5.5. Test Result ...................................................................................................................................... 15 6. NUMBER OF HOPPING CHANNEL .................................................................................................. 16 6.1. Limit ............................................................................................................................................... 16 6.2. Test Setup ........................................................…

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1 Data Sheet Product : Plastic shellantenna Date: Apr 18,2023 Customer Applied model Customer Customer Part No. Product DescriptionWI-FIAntenna Supplier saixun Supplier Part No. SX-008-1401 Customer By designedBy CheckedBy Approval 2 Catalogue 1.Revisionhistory------------------------------------------------------------------------------------3 2.General----------------------------------------------------------------------------------------------4 ElectricalProperties MechanicalProperties EnvironmentProperties 3.Testreports-----------------------------------------------------------------------------------------5&7 4.ProductDrawings----------------------------------------------------------------------------------8 3 RevisionHistory Revision No. OriginatorDescriptionofchangesDateofchanges 1YanhuTuoFirstdocument Apr18,2023 2 3 4 5 6 7 8 9 10 11 12 4 1General ElectricalProperties FrequencyBand2.4+5.8GWI-FI TestFrequency2.4-2.5/5.15-5.85GHz VSWR≦2.0 Efficiency≧35%@≧40% Gain ≦2.0dBi RadiationPatternOmni-Directional PolarizationV/H AntennaTypeDipole MechanicalProperties AntennaDimension320mm ConnectorTypeI-PEX Connectorpull1.5Kgmin CableTypeRF-1.13 InstallationsiteMachineinside FixedmodeBoardendconnector EnvironmentProperties OperationalTemperature-40°C~+85°C Storagetemperature-30°C~+60°C 5 2TestData(onlytesttheantennasepartely) 2.1NetworkData( Returnloss) 2.2GainandEfficiency FrequencyID123456 Frequency(MHz)2400.02450.02500.05150.05500.05850.0 Efficiency(dBi)-4.54-3.27-3.17-3.90-3.00-2.81 Gain(dBi)0.261.301.49-0.290.460.79 Efficiency(%)35.1347.1148.2340.7250.1552.31 6 2.3Radiationpattern 2400.0MHzH+V,Eff:35.1%2400.0MHzTotal(E1-XZ),Max=0.08dBi2400.0MHzTotal(E2-YZ),Max=-1.47dBiTotal(H-XY),Max=-0.62dBi,CirD=7.50 2450.0MHzH+V,Eff:47.1%2450.0MHzTotal(E1-XZ),Max=1.24dBi2450.0MHzTotal(E2-YZ),Max=-0.76dBiTotal(H-XY),Max=0.85dBi,CirD=8.69 2500.0MHzH+V,Eff:48.2%2500.0MHzTotal(E1-XZ),Max=1.05dBi2500.0MHzTotal(E2-YZ),Max=0.47dBi2500.0MHzTotal(E2-YZ),Max=0.47dBi 7 5150.0MHzH+V,Eff:40.7%5150.0MHzTotal(E1-XZ),Max=-2.05dBi5150.0MHzTotal(E2-YZ),Max=-0.29dBiTotal(H-XY),Max=-0.42dBi,CirD=4.99 5500.0MHzH+V,Eff:50.2%5500.0MHzTotal(E1-XZ),Max=-1.33dBi5500.0MHzTotal(E2-YZ),Max=0.13dBiTotal(H-XY),Max=0.46dBi,CirD=2.73 5850.0MHzH+V,Eff:52.3%5850.0MHzTotal(E1-XZ),Max=-0.13dBi5850.0MHzTotal(E2-YZ),Max=0.32dBiTotal(H-XY),Max=0.45dBi,CirD=3.75 8 3MechanicalDrawings ----------------------------------------------END-------------------------------------------------------

Conducted Test Radiated Test (30-1000 MHz) Radiated Test (Above 1GHz)