2AKZ8-LBS237Karaoke Rocker Speaker

Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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: 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. For Microphone This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. For Speaker This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.

User Manual Designed + care by Joyc™ www.joyc.play Product Features Caution 1 2 Thank you for Choosing Joyc Before using this product, please read the instruction manual carefully and keep it properly for reference. Phone Dock 2x Wireless Microphones Multi-Color LED Ring Light Selectable Bluetooth Music 8h Battery Powerful 360° Sound Please charge this device with a 5V/1A DC output mobile phone charger. Do not use a charger with an incorrect voltage to charge this device, as it may burn out due to voltage mismatch! Product Parameters Scan me Rated input :DC5V 1A Product size: 243*145*341mm Frequency response range: 80Hz-20KHz Bluetooth distance: 8-12m(no obstacles) SNR :≥90db Speaker Accesories Control Panel Bluethooth speaker USB charging cable Instruction manual Wireless microphone 1 pcs 1pcs 2pcs MODE PREV / REC/PLAY POWER / VOLUME MIC IN TF USB DC 5V AUX LED ECHO NEXT / M.PRJMUTE PLAY / PAUSE 1 2 3 4 5 6 7 8 9 10 11 12 Mode Prev / Rec / Play: Power / Volume: Mic In: TF: It can be connected to a 6.5mm audio wired microphone. Insert a TF card to play music files, with a maximum support capacity of 32G TF. When the device is o, rotate the switch The prompt sound indicates that it is on. When the device is on, rotate the switch to the far left to indicate that it is o, When playing music Rotate this knob to adjust the volume of the machine's sound. Press the previous track briefly; Long press to record, and then long press again to play the recording (the recording function requires turning on the microphone and inserting a USB flash drive /TF card for use). Press briefly to switch between Bluetooth/USB flash drive /TF card /AUX/FM mode; Long press the mode to switch/ turn o the light eect(5 lighting eects). USB: DC 5V: AUX: ECHO: LED: Insert a USB flash drive to play music files, with a maximum supported capacity of 32G. Connect the charger to charge the machine. A 3.5MM audio cable can be inserted to connect an external audio source for amplification.The AUX mode does not support microphones When using the microphone, rotate the knob, to adjust the r everb eect. The red indicator light is long on when charging, and the full light is o; After starting, the indicator light flashes blue; After the Bluetooth connection is successful, the light stops blinking and the blue light keepson; When playing music, the blue light flashes slowly. (Music Playing) (Audio Capture and playback) Function Operation Function Operation When the TF card or USB flash drive is inserted, the machine automatically switches to the music mode. Pressing the pause/Play button can pause or play the currently playing content. Press the previous song or the next song to switch the music. Press the mode key briefly to switch functions such as Bluetooth/USB flash drive /TF card /AUX/ r adio. Press the mode key to switch to the radio. Long press the play button to automatically search for channels. After searching, it will be automatically saved. Press the previous or the next to switch radio stations. (Audio Input) (Recording Operation) Function Operation Function Operation Press the mode key to switch to audio input; Insert the audio into the AUX and connect the other end to the headphone jack of your mobile phone or computer . Pressing the pause/play button can pause/play the music. (The sounds of mobile phones or computers will not pause) Turn on the microphone and long press the recording/ play button to switch to recording and start recording (the recording function requires the insertion of a USB flash drive /TF card for use). Press and hold the recording/Play button again to exit the recording and the recording file will play automatically. The audio files are automatically saved to a TF or USB flash drive. Microphone button operation instructions: Short press: Microphone volume + Long press: Next song Short press: Microphone volume - Long press: Previous song Short press: Switch the magic sound eect Long press: Eliminate the original sound Long press: Power on/o Short press: Switch the microphone volume and reverb adjustment Matters needing attention: Warn! a. Do not expose the product to rain or wet environment; b. Do not drop, to avoid product damage due to fall; c. Please use the rated voltage of the speaker to charge; Note: If the batt ery is not replaced properly, there is a risk of explosion, only the same type or Equivalent type of battery to replace; The battery shall not be exposed to warnings such as sunlight, fire or similar overheating environment. Trouble shoot: If there is whistling during indoor singing, lower the volume to solve it. Charge the battery at least once every 2 months, if not charging for a long time, the batt ery will enter protective state. After the battery enters the protection state, please continue charging for 24 hours. If it still cannot be turned on, please contact after -sales to replacethe batt ery. Designed + care by Joyc™ www.joyc.play (Bluethooth Connection) Press the next track briefly; Long press to clear the original sound. Next / M.PRJ Mute: Play / Pause: Function Operation Pause and resume the currently playing. After the speaker is turned on, if no music medium is connected, the machine will default to Bluetooth mode and be accompanied by a prompt sound. At this point, turn on your phone and enable the Bluetooth mode. in the"Available Devices" section of your phone, find "Sing Together Karaoke", select this Bluetooth name and click to connect and pair.

DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO., LTD ADD: 2A No.60 Lizhong Road Dali Qingxi Town, DONGGUAN, China Tel: 8676982852599 Email: [email protected] Date: 2025-08-01 Attestation letter To: FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To whom it may concern: Our product Karaoke Rocker Speaker, model: LBS237, FCC ID: 2AKZ8-LBS237, for marketing purpose, this product only supports BT(GFSK, π/4-DQPSK, 8DPSK), BLE(only has RX functions), FM(only has RX functions). The other functions, bands and modes was disabled to use by manufacturer in the software, the end user has no capability to activate it. Sincerely Yours, Signature: Printed Name: Sally Yang Title: Manager

DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO., LTD ADD: 2A No.60 Lizhong Road Dali Qingxi Town, DONGGUAN, China Tel: 8676982852599 Email: [email protected] CFR 47 §2.911(d)(5)(i) Attestation Letter Attestation Letter Date: 2025-08-01 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(i) Filing FCC ID: 2AKZ8-LBS237 DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD 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. Sincerely, Signature Printed Name: Sally Yang Title: Manager

DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO., LTD ADD: 2A No.60 Lizhong Road Dali Qingxi Town, DONGGUAN, China Tel: 8676982852599 Email: [email protected] CFR 47 §2.911 (d)(5)(ii) Attestation Letter Attestation Letter Date: 2025-08-01 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(ii) Filing FCC ID: 2AKZ8-LBS237 DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD 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. And our product does not use Kaspersky software information. Sincerely, Signature Printed Name: Sally Yang Title: Manager

U.S. AGENT LETTER OF ATTESTATION Date: 2025-08-01 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(7) Filing FCC ID: 2AKZ8-LBS237 DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD certifies that, as of the date of the filing of the application, Cleveland International Trade Agency is our designated U.S. agent for service of process for the above referenced FCC ID. DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD 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. Cleveland International Trade Agency accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Name: Cleveland International Trade Agency Address: 4033 St Clair Ave, Cleveland, OH 44103, USA FRN:0033401837 Tel.: +1 216.600.0606 Email: [email protected] Signed by (printed name):Becky Deng Signature: Applicant: DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD Address: 2A No.60 Lizhong Road Dali Qingxi Town, DONGGUAN, China FRN:0026187005 Tel:8676982852599 Email: [email protected] Signed by (printed name): Sally Yang Signature:

DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO., LTD ADD: 2A No.60 Lizhong Road Dali Qingxi Town, DONGGUAN, China Tel: 8676982852599 Email: [email protected] FCC Authorization Date: 2025-08-01 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We, DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD the undersigned, hereby authorize Bay Area Compliance Laboratories Corp. (Shenzhen) to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Bay Area Compliance Laboratories Corp. (Shenzhen) on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signature: Printed Name: Sally Yang Title: Manager

DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO., LTD ADD: 2A No.60 Lizhong Road Dali Qingxi Town, DONGGUAN, China Tel: 8676982852599 Email: [email protected] FCC Confidential Authorization Date: 2025-08-01 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2AKZ8-LBS237 In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD hereby requests long-term confidential treatment of information accompanying this application as outlined below:  Block Diagram  Schematics  Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely Yours, Signature: Printed Name: Sally Yang Title: Manager

DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO., LTD ADD: 2A No.60 Lizhong Road Dali Qingxi Town, DONGGUAN, China Tel: 8676982852599 Email: [email protected] Date: 2025-08-01 Product Similarity Declaration FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To whom it may concern: We, DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD hereby declare that we have a product named as Karaoke Rocker Speaker, model: LBS237, FCC ID: 2AKZ8-LBS237 was tested by Bay Area Compliance Laboratories Corp. (Shenzhen). The device has two difference appearance color design. The difference between them just only appearance color, other is the same. We confirm that all information above is true, and we’ll be responsible for all the consequences. Please contact me if you have any question. Sincerely, Signature: Printed Name: Sally Yang Title: Manager

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501U38881E-RF Page 1 of 7 EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501U38881E-RF Page 2 of 7 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501U38881E-RF Page 3 of 7 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501U38881E-RF Page 4 of 7 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501U38881E-RF Page 5 of 7 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501U38881E-RF Page 6 of 7 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501U38881E-RF Page 7 of 7

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501U38881E-RF EXHIBIT A - FCC ID LABEL AND LOCATION FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925)

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501U38881E-RF Page 1 of 8 EXHIBIT C - EUT INTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501U38881E-RF Page 2 of 8 FM ANT(RX) Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501U38881E-RF Page 3 of 8 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501U38881E-RF Page 4 of 8 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501U38881E-RF Page 5 of 8 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501U38881E-RF Page 6 of 8 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501U38881E-RF Page 7 of 8 BT ANT Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2501U38881E-RF Page 8 of 8 BLE ANT (RX only)

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501U38881E-RF-00 TR-EM-RF001 Page 69 of 71 Version 4.1 RF EXPOSURE EVALUATION MAXIMUM PERMISSIBLE EXPOSURE (MPE) Applicable Standard According to subpart §1.1310, 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 of the Commission’s guidelines. Limits for Maximum Permissible Exposure (MPE) (§1.1310, §2.1091) (B) Limits for General Population/Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (minutes) 0.3–1.346141.63*(100)30 1.34–30824/f2.19/f*(180/f²)30 30–30027.50.0730.230 300–1500//f/150030 1500–100,000//1.030 f = frequency in MHz; * = Plane-wave equivalent power density; According to §1.1310 and §2.1091 RF exposure is calculated. Result Calculation formula: Prediction of power density at the distance of the applicable MPE limit S = PG/4R² = power density (in appropriate units, e.g. mW/cm 2 ); P = power input to the antenna (in appropriate units, e.g., mW); G = power gain of the antenna in the direction of interest relative to an isotropic radiator, the power gain factor, is normally numeric gain; R = distance to the center of radiation of the antenna (appropriate units, e.g., cm) Calculated Data: For worst case: Antenna Gain # Max Tune-up Power # Mode Frequency (MHz) (dBi)(numeric)(dBm)(mW) Evaluation Distance (cm) Power Density (mW/cm 2 ) MPE Limit (mW/cm 2 ) BT2402-24802.499 1.783.0 2.00 200.0007 1.0 Note: The tune up conducted power and antenna gain was declared by the applicant. To maintain compliance with the FCC’s RF exposure guidelines, place the equipment at least 20cm from nearby persons. Result: Compliant.

Note: The information marked # is provided by the applicant, the laboratory is not responsible for its authenticity and this information can affect the validity of the result in the test report. Customer model name, addresses, names, trademarks etc. are included. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. This report must not be used by the customer to claim product certification, approval, or endorsement by NVLAP or any agency of the U.S. Government. This report may contain data that are not covered by the NVLAP accreditation and are marked with an asterisk “▼”. Bay Area Compliance Laboratories Corp. (Shenzhen) 5F(B-West) , 6F, 7F, the 3rd Phase of Wan Li Industrial Building D, Shihua Rd, FuTian Free Trade Zone, Shenzhen, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn TR-EM-RF001 Page 1 of 71 Version 4.1 TEST REPORT Applicant Name:DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD Address:2A No.60 Lizhong Road Dali Qingxi Town, DONGGUAN, China Report Number:2501U38881E-RF-00 FCC ID:2AKZ8-LBS237 Test Standard (s) FCC PART 15.247 Sample Description Product Type:Karaoke Rocker Speaker Model No.:LBS237 Multiple Model(s) No.:N/A Trade Mark:Joyc Date Received:2025-06-25 Issue Date:2025-08-18 Test Result:Pass ▲ ▲ In the configuration tested, the EUT complied with the standards above. Prepared and Checked By:Approved By: Allen BaiNancy Wang RF EngineerRF Supervisor Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2501U38881E-RF-00 TR-EM-RF001 Page 2 of 71 Version 4.1 TABLE OF CONTENTS DOCUMENT REVISION HISTORY ..........................................................................................................................3 GENERAL INFORMATION ........................................................................................................................................4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT)......................................................................................4 OBJECTIVE ....................................................................................................................................................................4 TEST METHODOLOGY....................................................................................................................................................4 MEASUREMENT UNCERTAINTY .....................................................................................................................................5 TEST FACILITY ..............................................................................................................................................................5 SYSTEM TEST CONFIGURATION ...........................................................................................................................6 SUMMARY OF TEST RESULTS ................................................................................................................................9 TEST EQUIPMENT LIST ..........................................................................................................................................10 REQUIREMENTS AND TEST PROCEDURES ......................................................................................................11 AC LINE CONDUCTED EMISSIONS...............................................................................................................................11 RADIATED EMISSIONS .................................................................................................................................................13 20 DB EMISSION BANDWIDTH .....................................................................................................................................16 CHANNEL SEPARATION TEST ......................................................................................................................................18 QUANTITY OF HOPPING CHANNEL TEST .....................................................................................................................19 TIME OF OCCUPANCY (DWELL TIME) .........................................................................................................................20 PEAK OUTPUT POWER MEASUREMENT .......................................................................................................................21 BAND EDGES ...............................................................................................................................................................22 CONDUCTED SPURIOUS EMISSION...............................................................................................................................23 ANTENNA REQUIREMENT .....................................................................................................................................24 TEST DATA AND RESULTS .....................................................................................................................................25 AC LINE CONDUCTED EMISSIONS...............................................................................................................................25 RADIATED EMISSIONS .................................................................................................................................................28 20 DB EMISSION BANDWIDTH .....................................................................................................................................47 99% OCCUPIED BANDWIDTH ......................................................................................................................................50 CHANNEL SEPARATION .................................…

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Antenna Test Report SPECIFICATIONS Frequency（MHz）2400-2480 VSWR＜3.2 Impedance（Ω）50Ω Antenna TypePlannar Inverted F Antenna on board PolarizationLinear Test environment: Zhongke Guoji anechoic Chamber Test System Z X Y DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD 2A No.60 Lizhong Road Dali Qingxi Town, DONGGUAN, China Physical dimensions of the antenna Antenna efficiency and gain Frequency（MHz）Gain（dBi） Effciency（%）Average Gain（dBi） Efficiency（dB） 24001.43359.329%-2.717-2.267 24100.92751.861%-3.416-2.852 24200.82952.112%-3.166-2.831 24300.88149.299%-3.258-3.072 24401.19250.672%-3.144-2.952 24501.68853.067%-2.735-2.752 24602.19459.423%-2.276-2.260 24702.11856.680%-2.438-2.466 24802.49961.727%-2.112-2.095 Average1.52954.908%-2.806-2.616 Peak2.49961.727%-2.112-2.095 2440MHz 2D-Phi Pattern 2440MHz 2D-Theta Pattern 2440MHz 3D-Horizontal Pattern 2440MHz 3D-Vertical Pattern 2440MHz 3D-Total Pattern

Bay Area Compliance Laboratories Corp. (Shenzhen) EXHIBIT No.: 2501U38881E-RF-00 Page1 / 3 TEST SETUP PHOTOGRAPHS Conducted Emissions - Front View Conducted Emissions - Side View Bay Area Compliance Laboratories Corp. (Shenzhen) EXHIBIT No.: 2501U38881E-RF-00 Page2 / 3 Radiated Emissions View (Below 30MHz) Radiated Emissions View (Below 1 GHz) Bay Area Compliance Laboratories Corp. (Shenzhen) EXHIBIT No.: 2501U38881E-RF-00 Page3 / 3 Radiated Emissions View (1-18 GHz) Radiated Emissions View (18-25 GHz) *****END *****