2BSRX-BF888COLORFUL KARAOKE SOUND SYSTEM

Click once: Bluetooth/TF(Memory card) Red indicator light: charging indicator light Problem Reason Solution No sound with speaker The speaker doesn't turn on The Bluetoothcannot be connected Distortion of sound No sound in TF card mode The speaker cannot be charged No sound with mic The mic doesn't turnedon The sound of micis stuck The mic cannot be charged Screaming The mic toward speaker too closely The micis covered by other objects The charging cable has poor contact with port The charging cable is broken The battery is too low The battery is too low The volume of micis to low The volume of the micin power off states The charging cable has poor contact with port The charging cable is broken Don't support special format Don'tread the card The sound is too loud Battery is toclow It has connected with other phone The battery is of of power The volume on the phone is off A. Increase the volume on the phone 8.Increase the volume on the speaker A. Charging the battery A. Disconnected the Bluetooth with other phone A. Decrease the volume B. Charging the battery A. Change the formal of musics B. insert the TF card again A.Inserting the cable in the port tightly B.Change a new charging cable A.Increase the volume of MIC B.Turn on the volume of mic A.Charging the battery A. Charging the battery A.Inserting the cable in the port tightly B.Change a new charging cable A. Adjust the distance of mic and speaker B. Avoid the interference of obstacles Bluetooth Connection Common Malfunction and Resolve Method. Specification Connecting Bluetooth of Mobile Phone 1. Tum on the speaker: long press the power on/off button for 2 seconds to turn on the speaker, and then Bluetooth indicator light will flash. 2. Bluetooth connection: Open the Bluetooth setting on the phone, choose the Bluetooth named“BF888"for paring , You can hear the prompt sound after connecting successfully 3. Open the Karaoke APP to play music. Note: Once your mobile phone has connected with the Bluetooth. It will be connected automatically next time because it has memory function. If you want disconnect the Bluetooth, please cancel paring in your phone setting Model BF888 Mic: Capacitive Speaker:4Ω5W Charging voltage:DC 5V Bluetooth Version :5.3 Material: ABS Frequency Response Range:90Hz~18 KHz Maximum Sound Pressure Level:>115dB 1Khz THD<1% Sound Mode: Reverb Mode Rechargeable Battery:18650battery Warning: 1. lf the machine appears smoke or other abnormal phenomena, please contact our after-sales service for help 2. lf the inside of the machine is affected by rain or damp, please put the machine in a ventilated place to dry. 3. Do not bake the machine at high temperature, otherwise it may cause the risk to burn the machine or destroy the internal components of the machine. 4. This product should not be exposed to overheating environment, such as sunlight, fire or inflammation. 5. Do not throw the machine, so as to avoid fall damage, 6. If consumers use a power adapter for power supply, please use the qualified power adapter with standard certification.It is forbidden to charge the high-power mobile phone fast charge charging equipment to charge this speaker device, which will result in damage to this equipment. Charging Description BF888 COLORFUL KARAOKE SOUND SYSTEM User Manual In order to better use the product performance, please read the user manual carefully. Note : Please make sure fully charge the ts before first use. Do not use quick-charge Do not use quick-charge 4. Bluetooth speakers can only be paired with one mobile phone at a time, and other mobile phones need to cancel the Bluetooth connection of the connected phone before connecting to Bluetooth. Long press: prev song Click once : volume- Long press: power on/off Click once : play/pause Long press: next song Click once : volume+ Click once: Bluetooth/TF(Memory card) Card mode switch Long press: 1 2 3 4 9 Type-C USB cable Do not use quick-charge 6 TF card slot 5 Light mode switching Do not use quick-charge 4 5 Auxiliary Interface 8 DC 5V charging port 7 Blue indicator light: Connecting light Red indicator light: charging indicator light AUX FCC Warning 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. NOTE 1: 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 i nterference 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. NOTE 2: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

HuNanZhengSenKeJiYouXianGongSi U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: November 07, 2025 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: 2BSRX-BF888 HuNanZhengSenKeJiYouXianGongSi(“the applicant”) certifies that, as of the date of the filing of the application, CLF Import and Export Limited (“the agent”) is our designated U.S. agent for service of process for the above reference FCC ID. The applicant accepts 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. The applicant further acknowledges it is our responsibility to inform the FCC whenever the agent information changes. CLF Import and Export Limited ("the agent) understand it is the agent's obligation 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. Designated U.S. Agent Company Name: CLF Import and Export Limited FRN: 0033489683 Address: 1312 17th Street #692, Denver, CO 80202, United States Signature: Contact Person: David Chen Tel: +1 949 254 2565 Email: [email protected] Applicant HuNanZhengSenKeJiYouXianGongSi FRN: 0037612645 Address: Building A5, Electronic Information Industrial Park, Lingling Industrial Zone, Shanshagou Street, Yongzhou City, Hunan Province, China Signature: Contact Person: Guanghua Zhou Tel: +86-18607384115 Email: [email protected]

Rev 1/26/2023 (HuNanZhengSenKeJiYouXianGongSi) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: November 07, 2025 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2BSRX-BF888 [HuNanZhengSenKeJiYouXianGongSi] 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. [HuNanZhengSenKeJiYouXianGongSi] certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Device is inherently compliant based on hardware limitations or software controls. or A Software Bill of Materials (SBOM) is provided to the TCB for review, and The end-user or third parties cannot install additional software on this device. Sincerely, (Guanghua Zhou) Rev 1/26/2023 (HuNanZhengSenKeJiYouXianGongSi) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: November 07, 2025 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BSRX-BF888 [HuNanZhengSenKeJiYouXianGongSi] certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Sincerely, (Guanghua Zhou)

HuNanZhengSenKeJiYouXianGongSi Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: November 19, 2025 Subject; Request for Confidentiality FCC ID: 2BSRX-BF888 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 Parts List Operational Description Tune-up Procedure Software Security Requirements for UNII devices In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. 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: Guanghua Zhou Title: Manager

HuNanZhengSenKeJiYouXianGongSi Date: November 07, 2025 Product Model Number: BF888 FCC ID: 2BSRX-BF888 To whom it may concern, Re: Product Certification Representative Authorization Letter We authorize QAI Laboratories Ltd. 3980 North Fraser Way, Burnaby B.C. Canada V5J 5K5 to act on our behalf on all matters concerning the above named equipment. This shall include the following: • Testing • Approval applications and procedures We declare that QAI Laboratories Ltd. is allowed to forward all information related to the approval project to the applied certification body and to the notification entities and to discuss any issues concerning the approval application. Any and all acts carried out by QAI Laboratories Ltd. on our behalf shall have the same effect as acts of our own. By: Guanghua Zhou Contact Listed on FCC Wesbite Title: Manager Email: [email protected] Telephone: +86-18607384115 On behalf of: HuNanZhengSenKeJiYouXianGongSi

Summary Inverted F Antenna Specification ITEM ANT SPEC Model Name 2.4G ANT Center Frequency Horizontal Vertical 2400MHz 2400MHz 2500MHz 2400MHz 2400MHz 2500MHz -1.26-0.76-0.58-5.25-2.46-1.86 MAX. Gain -0.58dBi Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Antenna type PCB Antenna Impedance 50 Ohm length and width 15.2*5.7mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Address 333 Kexing Road, Xiangzhou District, Zhuhai City, Guangdong Province Antenna Photo & Length (mm) Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Frequency (MHz) Gain(dBi) Max Min Avg 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 Frequency (MHz) Gain(dBi) Max Min Avg 2400 -5.2537-22.1424-12.4294 2450 -2.4652-24.5837-10.4702 2500 -1.86120-29.5214-9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

Report No: SSP25100009-1E FCC ID: 2BSRX-BF888 Annex of Test Report Annex A. EUT External Photos Model: BF888 EUT View 1 EUT View 2 Report No: SSP25100009-1E FCC ID: 2BSRX-BF888 Annex of Test Report EUT View 3 EUT View 4 Report No: SSP25100009-1E FCC ID: 2BSRX-BF888 Annex of Test Report EUT View 5 EUT View 6 Report No: SSP25100009-1E FCC ID: 2BSRX-BF888 Annex of Test Report EUT View 7

Report No: SSP25100009-1E FCC ID: 2BSRX-BF888 Annex of Test Report Annex D. Label and Information FCC Label Sample Label Size:2cm*1.2cm FCC Label Specifications Text is Black in color and is justified. Labels are printed in indelible ink on permanent adhesive backing or silk-screened onto the EUT or shall be affixed at a conspicuous location on the EUT. Where the EUT is constructed in two or more sections connected by wires and marketed together, the above statement is required to be affixed only to the main control unit. When the EUT is so small or for such use that it is not practicable to place the statement on it, the above information shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or, alternatively, shall be placed on the container in which the device is marketed. FCC Label Location

Report No: SSP25100009-1E FCC ID: 2BSRX-BF888 Annex of Test Report Annex B. EUT Internal Photos Model: BF888 EUT Internal View 1 EUT Internal View 2 PCB Antenna Report No: SSP25100009-1E FCC ID: 2BSRX-BF888 Annex of Test Report EUT Internal View 3 EUT Internal View 4 Report No: SSP25100009-1E FCC ID: 2BSRX-BF888 Annex of Test Report EUT Internal View 5 EUT Internal View 6

FCC ID: 2BSRX-BF888 RF Exposure Evaluation According to KDB 447498 D01 General RF Exposure Guidance v06 and part 2.1093，Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR, and ≤ 7.5 for 10-g extremity SAR, where f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison Here, The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. For BR+EDR Max Conducted Power(dBm) Tune-up Power(dBm) Max Tune-up Power(dBm) Max Power(mW) Frequency(MHz) Min. distance(mm) Calc. thresholds limit 2.33 2(±1) 3 1.995 2402 5 0.6183 3.0 So a SAR test is not required

Report No: SSP25100009-1E FCC Test Report Page 1 of 51 FCC TEST REPORT FCC ID: 2BSRX-BF888 Report No. : SSP25100009-1E Applicant : HuNanZhengSenKeJiYouXianGongSi Product Name : COLORFUL KARAOKE SOUND SYSTEM Model Name : BF888 Test Standard : FCC Part 15.247 Date of Issue : 2025-10-16 Shenzhen CCUT Quality Technology Co., Ltd. 1F, Building 35, Changxing Technology Industrial Park, Yutang Street, Guangming District, Shenzhen, Guangdong, China; (Tel.:+86-755-23406590 website: www.ccuttest.com) This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd. Report No: SSP25100009-1E FCC Test Report Page 2 of 51 Test Report Basic Information Applicant..................................: HuNanZhengSenKeJiYouXianGongSi Address of Applicant...............: Building A5, Electronic Information Industrial Park, Lingling Industrial Zone, Shanshagou Street, Yongzhou City, Hunan Province, China Manufacturer..........................: HuNanZhengSenKeJiYouXianGongSi Address of Manufacturer........: Building A5, Electronic Information Industrial Park, Lingling Industrial Zone, Shanshagou Street, Yongzhou City, Hunan Province, China Product Name.........................: COLORFUL KARAOKE SOUND SYSTEM Brand Name.............................: Aadmd Main Model..............................: BF888 Series Models..........................: - Test Standard..........................: FCC Part 15 Subpart C ANSI C63.4-2014 ANSI C63.10-2020/Cor 1-2023 Date of Test .............................: 2025-10-10 to 2025-10-16 Test Result...............................: PASS Tested By ................................: (Coke Huang) Reviewed By............................: (Lorzix Luo) Authorized Signatory............: (Lahm Peng) Note : This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd.. All test data presented in this test report is only applicable to presented test sample. Report No: SSP25100009-1E FCC Test Report Page 3 of 51 CONTENTS 1. General Information ....................................................................................................................................................5 1.1 Product Information .............................................................................................................................................5 1.2 Test Setup Information..........................................................................................................................................6 1.3 Compliance Standards ...........................................................................................................................................7 1.4 Test Facilities ........................................................................................................................................................7 1.5 List of Measurement Instruments ..........................................................................................................................8 1.6 Measurement Uncertainty .....................................................................................................................................9 2. Summary of Test Results ........................................................................................................................................... 10 3. Antenna Requirement ............................................................................................................................................... 11 3.1 Standard and Limit.............................................................................................................................................. 11 3.2 Test Result .......................................................................................................................................................... 11 4. Conducted Emissions ................................................................................................................................................ 12 4.1 Standard and Limit.............................................................................................................................................. 12 4.2 Test Procedure.................................................................................................................................................... 12 4.3 Test Data and Results .......................................................................................................................................... 13 5. Radiated Emissions ................................................................................................................................................... 16 5.1 Standard and Limit.............................................................................................................................................. 16 5.2 Test Procedure.................................................................................................................................................... 16 5.3 Test Data and Results .......................................................................................................................................... 18 6. Band-edge Emissions(Radiated) ............................................................................................................................... 22 6.1 Standard and Limit.............................................................................................................................................. 22 6.2 Test Procedure.................................................................................................................................................... 22 6.3 Test Data and Results .........................................................................................…

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Report No: SSP25100009-1E FCC ID: 2BSRX-BF888 Annex of Test Report Annex C. Test Photos Conducted Emission Test View 1 Radiated Emission Test View Below 1GHz Report No: SSP25100009-1E FCC ID: 2BSRX-BF888 Annex of Test Report Radiated Emission Test View Above 1GHz