WC2-WB507Portable Waterproof Speaker

If 2 smart devices are connected, and you want to play via PartySync mode, press and hold to enter into PartySync pairing, meanwhile, the currently playing device will be disconnected. In PartySync mode, if you want to play via TWS, press and hold to exit PartySync mode first. The on secondary speakers can’t be controlled under PartySync mode. In PartySync mode, press the on all Extreme Boom when you want to ac�ve the Extra bass. To prolong the life�me of the ba�ery, fully charge it before first �me using. The ba�ery is at low level when the le�most LED blinks. The speaker will auto power off a�er 15 minutes without audio input. To cancel the auto power off feature, press and hold for 2s simultaneously. The USB out is only for charging your device. Restore factory se�ng by press and hold the for 2s simultaneously. Press any bu�on to check the ba�ery level while not charging. When all bu�ons can't be controlled, try to poke the Aux port with a paper clip. If you need any assistance while using this speaker, please feel free to contact customer service at [email protected]. Bluetooth range: up to 20m/66� Output power: 60W DC power input: 5V 2A USB output: 5V 1A Capacity : 10400mAh Charge �me: 6hrs Play�me: 30hrs (at 50% volume-Hotel California) Net weight: 2.08Kg (4.6lbs) Dimension: 323*120*184 mm (12.7*4.8*7.3inches) TF card audio format: MP3, WMA, FLAC (Max capacity 128G) Wireless Portable Waterproof Speaker Model No.: Extreme Boom Quick Start Guide 1. Packing content 4. Bu�ons and control 5. LED indica�on 6. Connec�ons ● ● ● ● 1 x Extreme Boom 1 x USB-C charging cable 1 x Strap 1 x Quick start guide ● ● ● ● ● ● ● ● ● 7. Bluetooth mode ● ● Press to re-enter Bluetooth pairing if your device can’t find Extreme Boom in 10 secs. This speaker can pair with 2 devices via Bluetooth simultaneously, but it can only play music on one device at a �me. To play from the other connected device, pause the currently playing one first. 1. Enable the Bluetooth feature on your device. 2. Select Extreme Boom on the Bluetooth list. 3. Once paired, you can see the status “connected” on your device. 2. Specifica�ons 3. Important notes before using Bu�ons Func�onHow to control Turn on/ offPress and hold Extra bass on/ offPress Volume downPress Previous trackPress and hold Play/ pausePress Reconnected to the last devicePress Disconnect device(s)Press and hold Volume upPress Next trackPress and hold Switch audio input modesPress Enter/exit TWS modePress and hold Enter/exit PartySync modePress and hold Press and hold the two bu�ons for 2 secsRestore factory se�ng ba�ery level 25% ba�ery level 50% ba�ery level 75% ba�ery level 100% Extra bass on Extra bass off Bluetooth pairing Bluetooth paired Aux in mode TF card mode PartySync modeSolid white Solid green Solid red Solid blue Flashing blue Off Solid white 8. TWS (True Wireless Stereo) mode ● ● If 2 smart devices are connected, and you want to play via TWS mode, press and hold to enter into TWS pairing, meanwhile, the current playing device will be disconnected. In TWS mode, if you want to play via PartySync mode, press and hold to exit TWS mode first. 1. Press and hold on both Extreme Boom to enter into TWS pairing. 2. Once paired, the LED of the primary speaker turns solid blue, while the secondary speaker flashes in blue. 3. Find “Extreme Boom” on your Bluetooth device and connect it. 9. PartySync mode ● ● ● ● 1. Turn on one speaker and get it paired with your device, and long press to enter the PartySync mode. The speaker will be the primary speaker, and LED turns solid red. 2. Turn on the other speaker(s) and long press to enter the PartySync mode. The speaker(s) will be the secondary speaker(s), and LED turn(s) off 11. Safety instruc�ons Avoid dropping or hi�ng the speaker. Avoid exposing to extreme temperature. Avoid using the speaker near a microwave. Never disassemble or repair the speaker. Never use any corrosive cleanser/oil to clean. Never leave the speaker in a car parked in the sun. Never a�empt to charge the speaker while it is wet. You can connect the Dot with the speaker by Bluetooth. Please follow the steps to set up via Bluetooth: 1. Download the Alexa app and follow the standard setup procedure to get the dot connected to your home Wi-Fi network. 2. Switch the Extreme Boom to Bluetooth mode, you can press and hold the Bluetooth bu�on to keep it in pairing status. 3. Run the Alexa App, tap Menu, and then tap Se�ngs. 4. Tap the Echo Dot in your list of Alexa devices, then tap Bluetooth. 5. The Extreme Boom should appear in the list of Bluetooth devices. If not, please long press the Bluetooth bu�on and try it again. 6. Once listed, tap on the speaker to complete the pairing process. 7. To remove the device, return to Bluetooth > tap the name of speaker > tap “Forget Device” 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 limits are designed to provide reasonable protec�on against harmful interference in a residen�al installa�on. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruc�ons, may cause harmful interference to radio communica�ons. However, there is no guarantee that interference will not occur in a par�cular installa�on. If this equipment does cause harmful interference to radio or television recep�on, 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 separa�on 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. Cau�on: Any changes or modifica�ons to this device not explicitly approved by manufacturer could void your authority t…

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Wonders Technology Co., Ltd. Declaration on model difference We the undersigned hereby confirm that these models are identical, and all models have the same RF module and antenna, PCB layout, schematics and component. Only the model name are different. Production name Trademark FCC ID Model no. Portable Waterproof Speaker N/A WC2-WB507 WB-507, WC2-WB507, Extreme Boom, Extreme Boom Pro, WB-526 Sincerely, Bo Liang Engineering Manager Wonders Technology Co., Ltd. 4/F, Tower A, 3rd Building, Tian'an Cloud Park, Bantian Avenue, Longgang District, Shenzhen, China

Wonders Technology Co., Ltd. 2022-06-07 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize DongGuan Anci Electronic Technology Co., Ltd. to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Bo Liang Engineering Manager Wonders Technology Co., Ltd. 4/F, Tower A, 3rd Building, Tian'an Cloud Park, Bantian Avenue, Longgang District, Shenzhen, China

Wonders Technology Co., Ltd. 2022-06-07 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (EUT Name: Portable Waterproof Speaker /Model: WB-507, WC2-WB507, Extreme Boom, Extreme Boom Pro, WB-526 /FCC ID: WC2-WB507) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the (Block Diagram ,Operational Description,Schematics) required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, Bo Liang Engineering Manager Wonders Technology Co., Ltd. 4/F, Tower A, 3rd Building, Tian'an Cloud Park, Bantian Avenue, Longgang District, Shenzhen, China

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RF EXPOSURE EVALUATION EUT Specification EUT Portable Waterproof Speaker Model Number WB-507 FCC ID WC2-WB507 Antenna gain (Max) 0dBi Operation Frequency 2402-2480MHz Input Rating 5V2A Classification Per Stipulated Test Standard §15.247(i), §2.1093 Kind of Device: Bluetooth Ver. 5.1 Modulation GFSK, π/4-DQPSK, 8DPSK Max. output power 2.78dBm(0.002W) Test Requirement: According to §15.247(i) and §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. Routine SAR evaluation refers to that specifically required by §2.1093, using measurements or computer simulation. When routine SAR evaluation is not required, portable transmitters with output power greater than the applicable low threshold require SAR evaluation to quality for TCB approval. One antenna is available for the EUT. The minimum separation distance is 5mm. BT DSS: According to KDB 447498, no stand-alone required for BT antenna, and no simultaneous SAR measurement is required. Signature: Alan He Date: 2022-06-07 Transmit Frequency (MHz) Mode Measured Power (dBm) Tune up Power (dBm) Max tune up power(dBm) Calculation Result 1-g SAR 2402 GFSK 1.34 1±1 2 0.491266 3 2441 GFSK 2.29 2±1 3 0.623468 3 2480 GFSK 2.78 3±1 4 0.791145 3 2402 Π/4-DQ PSK 1.07 1±1 2 0.491266 3 2441 Π/4-DQ PSK 1.99 2±1 3 0.623468 3 2480 Π/4-DQ PSK 2.42 2±1 3 0.628428 3 2402 8DPSK 1.12 1±1 2 0.491266 3 2441 8DPSK 2.10 2±1 3 0.623468 3 2480 8DPSK 2.72 3±1 4 0.791145 3

Report No.: E01A22030472F01001 1 of 79 TRF No. FCC Part 15.247/A Ver.1.0 ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT INTENTIONAL RADIATOR CERTIFICATION TO FCC PART 15 SUBPART C REQUIREMENT OF Portable Waterproof Speaker Model No.: WB-507, WC2-WB507, Extreme Boom, Extreme Boom Pro, WB-526 Trademark: N/A FCC ID: WC2-WB507 Report No.: E01A22030472F01001 Issue Date: June 01, 2022 Prepared for Wonders Technology Co., Ltd. 4/F,Tower A,3rd Building,Tian'an Cloud Park, Bantian Avenue,Longgang District, Shenzhen, China Prepared by Dong Guan Anci Electronic Technology Co., Ltd. 1-2 Floor, Building A, No.11, Headquarters 2 Road, Songshan, Lake Hi-tech Industrial Development Zone, Dongguan City, evelopment Zone, Dongguan City, Guangdong Pr., China. This report shall not be reproduced, except in full, without the written approval of Dong Guan Anci Electronic Technology Co., Ltd. Report No.: E01A22030472F01001 2 of 79 TRF No.: FCC 15.209/A Rev. 1.0 VERIFICATION OF COMPLIANCE Applicant: Wonders Technology Co., Ltd. 4/F, Tower A, 3rd Building, Tian'an Cloud Park, Bantian Avenue, Longgang District, Shenzhen, China Manufacturer: Wonders Technology Co., Ltd. 4/F, Tower A, 3rd Building, Tian'an Cloud Park, Bantian Avenue, Longgang District, Shenzhen, China Product Description: Portable Waterproof Speaker Trade Mark: N/A Model Number: WB-507, WC2-WB507, Extreme Boom, Extreme Boom Pro, WB-526 (Note: All models are the same, except the model name.) We hereby certify that: The above equipment was tested by Dong Guan Anci Electronic Technology Co., Ltd.The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10-2013 and the energy emitted by the sample EUT tested as described in this report is in compliance with conducted and radiated emission limits of FCC Rules Part 15.247(2020). Date of Test : May 21, 2022 to May 30, 2022 Prepared by : Tomas Yang/Supervisor Reviewer & Authorized Signer : Alan He/Manager Report No.: E01A22030472F01001 3 of 79 TRF No.: FCC 15.209/A Rev. 1.0 Modified Information Version Summary Revision Date Report No. Ver.1.0 Original Report / E01A22030472F01001 Report No.: E01A22030472F01001 4 of 79 TRF No.: FCC 15.209/A Rev. 1.0 Table of Contents 1. GENERAL INFORMATION ................................................................................................... 6 1.1 PRODUCT DESCRIPTION ........................................................................................................................ 6 1.2 TEST METHODOLOGY ............................................................................................................................. 6 1.3 TEST FACILITY ........................................................................................................................................ 7 2. SYSTEM TEST CONFIGURATION ..................................................................................... 8 2.1 EUT CONFIGURATION ............................................................................................................................ 8 2.2 EUT EXERCISE ....................................................................................................................................... 8 2.3 TEST PROCEDURE .................................................................................................................................. 8 2.4 CONFIGURATION OF TESTED SYSTEM .................................................................................................. 9 3. SUMMARY OF TEST RESULTS ....................................................................................... 10 4. DESCRIPTION OF TEST MODES..................................................................................... 11 5. TEST SYSTEM UNCERTAINTY ........................................................................................ 12 6. CONDUCTED EMISSIONS TEST ..................................................................................... 13 6.1 MEASUREMENT PROCEDURE: ............................................................................................................. 13 6.2 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ......................................................................... 13 6.3 MEASUREMENT EQUIPMENT USED: .................................................................................................... 13 6.4 MEASUREMENT RESULT: .......................................................................................................................... 13 CONDUCTED MEASUREMENT PHOTOS: ......................................................................................................... 15 6.5 CONDUCTED MEASUREMENT PHOTOS: ................................................................................................... 16 7. RADIATED EMISSION TEST ............................................................................................. 17 7.1 MEASUREMENT PROCEDURE ............................................................................................................... 17 7.2 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 19 7.3 MEASUREMENT EQUIPMENT USED: ......................................................................................................... 20 7.4 RADIATED EMISSION LIMIT ....................................................................................................................... 21 7.5 MEASUREMENT RESULT ......................................................................................................................... 22 7.5 RADIATED MEASUREMENT PHOTOS: ................................................................................................... 30 8. CHANNEL SEPARATION TEST ....................................................................................... 31 8.1 MEASUREMENT PROCEDURE .........................…

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