2A394-LBW290291Bluetooth Speaker

Magboom OPERATING INSTRUCTION Bluetooth Name:Magboom Thank you for using the Bluetoot h speaker, in order to make it ea sy for you to use this product Please read the following carefully bef ore using this Bluetooth speaker. 1. Don't let children play with this product. 2. Do not knock the product. 3. Please pay attention to waterproof and high temperat ure resistance. Product us e less in cold areas when the temperature drops. 4. If the product is damaged, please send it to the repair service, do not disassemble it by yourself.. * Key functions are as follows: in MP3/BT, AUX mode 1. * press (POWER) for seconds : Power-on/power-off * click : To pair Bluetooth TWS, click : disconnect the TWS. 2. Double-click : To turn off or turn on the backlight on top, (the light is on when the device is turned on. If you need to turn off the light, please double click bluetooth Key to turn off the light), TF/AUX: Please click Key once, enter th e light off state). Bluetooth TWS pairing requirements are as follows: * (Click: POWER button, enter TWS pairing, blue LED flas h, pairing successfully when you hear a "bee" sound, When clicked, the host (R)LED blinks at short intervals, and the con nected secondary (L)LED normally on. the blue light keeps on while playing. Click : TWS will be disconnected. 3: - click: Last song when pl acying, For last Press f or seconds: Volume reduction -, 4: + click: next song when playing, Press for seconds volume incresing, 5.M Select mode: Bluetooth, TF, aux -in, (MODE /PLAY/PAUSE) BT After pairing bluetooth, then music mode Click “ M ” : Play/Pause in Bluetooth palcing mode. Press “ M ” for seconds : more than two se conds to switch mode bt/aux/tf (plug in TF/AUX line to switch synchronously) M double click :M PAIRING :M is PAI RING (s), PAIRING and disconnecting bluetooth peripherals; then double click :M, prompting PAIRING to connect bl uetooth mode, and press M to play music *Bluetooth phone mode: Click M to answer or end th e call. Press M for seconds to reject the call 6.AUX: Insert AUX 3.5mm male cable, enter AUX first, or press M. Press again or enter AUX play. 7. TF: In the case of inserting TF card, enter TF mode to play MP3 music preferentially. The TF card also can be used for software upgrades. 8. DC5V charging supply batt ery: Type-C IN, USB 5V-1A 9. LED control part * Bluetooth Bluetooth status, single machine mode, st ate before connection: LED flash, after successful connection: steady on, NO PLAY: steady on when the system is not playing. PLAY: steady on when the system is playing music. PAUSE: blinking slowly *Bluetooth TWS: During the TWS pairing process, the blue light LED: (flash), after the pairing is successful, a "beep" prompt sound will appear. Host (R)LED is (flash), secondary (L)LED (long light), blue light (long light), paus e (slow flash) when playing music *TF status: Blue light indicator -- long on *AUX state: Blue light indicator -- long on * Charging state: during cha rging, red indicator light on, red indicat or light off after the battery is full. Specification: Related output power: 15W Standard output: 1x 10W Speaker impedance: 4 ω Bluetooth version: V5.0 Input sensitivity: 750mV Signal to noise ratio: > = 82 db Standard output distortion :<=0.5% Maximum output distortion: <=8% Battery: 3.7V 3000mAH 11.1WH Battery working time: more than 4hours, 6-10 hours (50-- 75%VOL) Battery charging time: in 4hours USB TYPE -C input: 5V DC /1000mA * the accessories: Type-C USB cable 1 PC FCC Statement 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 li mits are designed to provi de 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 guar antee that interference will not occur in a particular inst allation. If this equipmen t 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 betw een 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 experien ced radio/TV technician for help. Caution: Any changes or modifications to this device not explicitly approve d by manufacturer could void your authority to operate this equipment. This device complies with part 15 of the FCC Ru les. 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, incl uding interference that may cause undesired operation. RF Exposure Information The device has been evaluated to meet general RF ex posure requirement. The device can be used in portable exposure condition without restriction.

Zhongshan Langbowang Electronic Technology Co.Ltd Add: 4th floor, No.165, Nanqi Middle Road, Nanlang Town Zhongshan City, Guangdong Province China Date: 2022/01/26 FCC ID: 2A394-LBW290291 Dear Sir/Madam, We, Zhongshan Langbowang Electronic Technology Co.Ltd Hereby declares the following statement for Federal Communications Commission, PCB board, circuit, structure and internal of these model(s) are the same, Only model number is different for these model: Product name: Bluetooth Speaker Model no.: LBW290, LBW291 Sincerely, Name/Title： YuPing He/CEO Company: Zhongshan Langbowang Electronic Technology Co.Ltd Address: 4th floor, No.165, Nanqi Middle Road, Nanlang Town Zhongshan City, Guangdong Province China Phone: +86 769 8333 0880 Fax: +86 769 8333 0881 E-Mail: [email protected]

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date:<2022/01/26> Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products: FCC ID Model name 2A394-LBW290291 LBW290 For the product stated above, we request that the following information be held confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name/Title： YuPing He/CEO Company: Zhongshan Langbowang Electronic Technology Co.Ltd Address: 4th floor, No.165, Nanqi Middle Road, Nanlang Town Zhongshan City, Guangdong Province China Phone: +86 769 8333 0880 Fax: +86 769 8333 0881 E-Mail: [email protected]

Zhongshan Langbowang Electronic Technology Co.Ltd 4th floor, No.165, Nanqi Middle Road, Nanlang Town Zhongshan City, Guangdong Province China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2022/01/26 To whom it may concern: We, Zhongshan Langbowang Electronic Technology Co.Ltd the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2A394-LBW290291 including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name/Title： YuPing He/CEO Company: Zhongshan Langbowang Electronic Technology Co.Ltd Address: 4th floor, No.165, Nanqi Middle Road, Nanlang Town Zhongshan City, Guangdong Province China Phone: +86 769 8333 0880 Fax: +86 769 8333 0881 E-Mail: [email protected]

Page 1 of 4 FCC ID: 2A394-LBW290291 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. External Photos Photo 1 Photo 2 Page 2 of 4 FCC ID: 2A394-LBW290291 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 3 Photo 4 Page 3 of 4 FCC ID: 2A394-LBW290291 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 5 Photo 6 Page 4 of 4 FCC ID: 2A394-LBW290291 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 7 Photo 8 ------End------

FCC ID Label FCC ID: 2A394-LBW290291

Page 1 of 6 FCC ID: : 2A394-LBW290291 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Internal Photos Photo 1 Photo 2 Page 2 of 6 FCC ID: : 2A394-LBW290291 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 3 Photo 4 Page 3 of 6 FCC ID: : 2A394-LBW290291 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 5 Photo 6 Page 4 of 6 FCC ID: : 2A394-LBW290291 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 7 Photo 8 Page 5 of 6 FCC ID: : 2A394-LBW290291 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 9 Photo 10 Antenna Page 6 of 6 FCC ID: : 2A394-LBW290291 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 11 ------End------

RF Exposure evaluation FCC ID: 2A394-LBW290291 1.1. Applicable Standard According to §1.1307(b)(1), 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. According to §1.1310 and §2.1093 RF exposure requirement KDB447498 v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies 1.2. Requirement According to KDB447498 D01 General RF Exposure Guidance v06 Section 4.3.1 Standalone SAR test exclusion considerations: “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, listed below, is satisfied. These test exclusion conditions are based on source-based time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune-up tolerance, and the minimum test separation distance required for the exposure conditions.22 The minimum test separation distance is determined by the smallest distance from the antenna and radiating structures or outer surface of the device, according to the host form factor, exposure conditions and platform requirements, to any part of the body or extremity of a user or bystander (see 5) of section 4.1). To qualify for SAR test exclusion, the test separation distances applied must be fully explained and justified by the operating configurations and exposure conditions of the transmitter and applicable host platform requirements, typically in the SAR measurement or SAR analysis report, according to the required published RF exposure KDB procedures. When no other RF exposure testing or reporting is required, a statement of justification and compliance must be included in the equipment approval, in lieu of the SAR report, to qualify for the SAR test exclusion. When required, the device specific conditions described in the other published RF exposure KDB procedures must be satisfied before applying these SAR test exclusion provisions; for example, handheld PTT two-way radios, handsets, laptops & tablets etc.23 “ [(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 • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to 5) in section 4.1 is applied to determine SAR test exclusion. [Bluetooth] GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -3 -2 -1 Tolerance ±(dB) 1.0 1.0 1.0 π/4DQPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -1 0 1 Tolerance ±(dB) 1.0 1.0 1.0 2. Evaluation Result Standalone Antenna 1 RF output power including tune up Band/Mode f (GHz) Antenna Distance (mm) dBm mW SAR Test Exclusion Threshold SAR Test Exclusion Estimated SAR BT 2.5 5 2 1.58 0.501< 3 Yes 0.106 Remark: 1. Output power including tune up tolerance; 2. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to f) in section 4.1 is applied to determine SAR test exclusion. 3. Conclusion The measurement results comply with the FCC Limit per 47 CFR 2.1093 for the uncontrolled RF Exposure and SAR Exclusion Threshold per KDB 447498 v06, No SAR is required. .....................End.........................

Page 1 of 38 Report No.: AIT22011104W1 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. TEST REPORT Client Information: Applicant: Zhongshan Langbowang Electronic Technology Co.Ltd Applicant add.: 4th floor, No.165, Nanqi Middle Road, Nanlang Town, Zhongshan City, Guangdong Province Manufacturer: Zhongshan Langbowang Electronic Technology Co.Ltd Manufacturer add.: 4th floor, No.165, Nanqi Middle Road, Nanlang Town, Zhongshan City, Guangdong Province Product Information: Product Name: Bluetooth Speaker Model No.: LBW290, LBW291 Brand Name: FCC ID: 2A394-LBW290291 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Prepared By: Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang,Dongguan, Guangdong, China Tel.: +86-769-8202 0499 Fax.: +86-769-8202 0495 Date of Receipt: Jan. 11, 2022 Date of Test: Jan. 11~Jan. 14, 2022 Date of Issue: Jan. 15, 2022 Test Result: Pass This device described above has been tested by Dongguan Yaxu (AiT) Technology Limited and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. Note: This report shall not be reproduced except in full, without the written approval of Dongguan Yaxu (AiT) Technology Limited, this document may be altered or revised by Dongguan Yaxu (AiT) Technology Limited, personal only, and shall be noted in the revision of the document. This test report must not be used by the client to claim product endorsement. Reviewed by: Approved by: Simba Huang Seal.chen Page 2 of 38 Report No.: AIT22011104W1 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. 1 Contents Page COVER PAGE 1 CONTENTS.................................................................................................................................................................... 2 2 TEST SUMMARY.......................................................................................................................................................... 4 2.1 Statement of the Measurement Uncertainty .............................................................................. 4 2.2 Measurement Uncertainty .........................................................................................................4 3 TEST FACILITY............................................................................................................................................................. 5 3.1 Deviation from standard............................................................................................................ 5 3.2 Abnormalities from standard conditions .................................................................................... 5 3.3 Test Location............................................................................................................................. 5 4 GENERAL INFORMATION......................................................................................................................................... 6 4.1 Test frequencies........................................................................................................................ 7 4.2 EUT Peripheral List ................................................................................................................... 8 4.3 Test Peripheral List ................................................................................................................... 8 4.4 TEST METHODOLOGY............................................................................................................ 9 4.5 Description of Test Modes.......................................................................................................10 5 EQUIPMENT USED DURING TEST........................................................................................................................ 11 6 TEST RESULTS AND MEASUREMENT DATA.................................................................................................... 12 6.1 Antenna requirement .............................................................................................................. 12 6.2 Peak Power Measurement...................................................................................................... 13 6.3 Frequency Separation and 20 dB Bandwidth.......................................................................... 15 6.4 Number of Hopping Frequency ............................................................................................... 17 6.5 Time of Occupancy (Dwell Time) ............................................................................................ 18 6.6 Conducted Spurious Emissions and Band Edges Test ........................................................... 20 6.7 Restrict-band Band-edge Measurements ............................................................................... 22 6.8 Radiated Emissions Measurement......................................................................................... 24 6.9 Conducted Emissions .............................................................................................................34 6.10 Pseudorandom frequency hopping sequence......................................................................... 37 7 TEST SETUP PHOTOGRAPHS OF EUT................................................................................................................ 38 8 EXTERNAL PHOTOGRAPHS OF EUT................................................................................................................... 38 9 INTERNAL PHOTOGRAPHS OF EUT.................................................................................................................... 38 Page 3 of 38 Report No.: AIT22011104W1 Dongguan Yaxu (AiT) Technology Lim…

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Dongguan Yaxu(AiT) Technology Limited Report No.: AIT22011104W1 FCC ID: 2A394-LBW290291 Page 1 of 42 Appendix A RF Test Data for BT(BDR/EDR) (Conducted Measurement) Product Name: Bluetooth Speaker Trade Mark: Test Model: LBW290 Environmental Conditions Temperature: 23.9°C Relative Humidity: 51% ATM Pressure: 101Kpa Test Engineer: Simba Huang Supervised by: Seal Chen Dongguan Yaxu(AiT) Technology Limited Report No.: AIT22011104W1 FCC ID: 2A394-LBW290291 Page 2 of 42 Contents Page COVER PAGE 1 Duty Cycle ........................................................................................................................................................................................... 3 1.1 Test Result............................................................................................................................................................................... 3 1.2 Test Graphs ............................................................................................................................................................................. 4 2 Maximum Conducted Peak Output Power .......................................................................................................................................... 7 2.1 Test Result............................................................................................................................................................................... 7 2.2 Test Graphs ............................................................................................................................................................................. 8 3 20dB Bandwidth ................................................................................................................................................................................ 11 3.1 Test Result............................................................................................................................................................................. 11 3.2 Test Graphs ........................................................................................................................................................................... 12 4 Carrier Frequency Separation ........................................................................................................................................................... 15 4.1 Test Result............................................................................................................................................................................. 15 4.2 Test Graphs ........................................................................................................................................................................... 16 5 Hopping Channel Number ................................................................................................................................................................. 17 5.1 Test Result............................................................................................................................................................................. 17 5.2 Test Graphs ........................................................................................................................................................................... 18 6 Dwell Time ......................................................................................................................................................................................... 19 6.1 Test Result............................................................................................................................................................................. 19 6.2 Test Graphs ........................................................................................................................................................................... 20 7 RF Conducted Spurious Emissions ................................................................................................................................................... 22 7.1 Test Result............................................................................................................................................................................. 22 7.2 Test Graphs ........................................................................................................................................................................... 23 8 Band-edge for RF Conducted Emissions .......................................................................................................................................... 29 8.1 Test Result............................................................................................................................................................................. 29 8.2 Test Graphs ........................................................................................................................................................................... 30 9 Restrict-band band-edge measurements .......................................................................................................................................... 38 9.1 Test Result............................................................................................................................................................................. 38 9.2 Test Graphs ........................................................................................................................................................................... 39 Dongguan Yaxu(AiT) Technology Limited Report No.: AIT22011104W1 FCC ID: 2A394-LBW290291 Page 3 of 42 1 Duty Cycle 1.1 Test Result Mode Frequency (MHz) Duty Cycle (%) 1/T (kHz) 1-DH1 2402 30.41 2.7 1-DH1 2441 30.41 2.7 1-DH1 2480 30.4 2.7 2-DH1 2402 31.21 2.63 2-DH1 2441 31.2 2.63 2-DH1 2480 31.2 2.63 Dongguan Yaxu(AiT) Technology Limited Report…

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Page 1 of 2 FCC ID: 2A394-LBW290291 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Test Setup Photo Radiated Emission Page 2 of 2 FCC ID: 2A394-LBW290291 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Conducted Emission ------End------