2BC3D-BOOMZWireless speaker

Speaker with hook 1pc Key func�ons Rotary knob BT bu�on LED light LED light What’s in the box 1 2 USB cable 1pc Bluetooth Connec�on Specifica�ons Speaker Type bluetooth wireless speaker Speaker system Stereo Dimensions 80*75*71mm Weight 182g Driver 4Ω 5W φ40mm Audio Play�me Approx 5 hours(@50-60% Volume) BT Version V5.3 Rated Power 5 Wa�s Power Supply Built-in 3.7V 800mAh Lithium Ba�ery Charging Time Approx 2 hours(USB C ) Frequency Response 100-20KHZ Range up to 10m Input power: DC 5V/1A Built-in Microphone 435 Safety Instruc�onsFCC statement 67 1 6 3 5 Specifica�ons Boomz User manual 1pc Wireless Speaker Rotary knob 2 BT bu�on USB-C LED MIC FR ÉTUI + SACHET Rotary knob Power on/off:hold 2s Play/pause:one click Next track:2 click Previous track:3 click Volume+: clockwise rota�on Volume-: counterlockwise rota�on Answer/end call:single click Reject calls:hold 2s Paring mold:hold 2s Siri:2 click Tws on/off:3 click BT bu�on Paring:blue light fast flash Paired:blue light on Tws on:Blue light slow flash Charging:red light on Fully charged:red light on 1.If it is not paired for 15 minutes a�er boo�ng, it will shut dowm. When low ba�ery,you can hear the prompt tone then the speaker will power off automa�cally Notes: 2.If Apple users feel that the volume is low, you can turn off this se�ng on the phone(Se�ngs-Sounds & Hap�cs-Headphone Safety-Reduce Loud Sounds) 2. A�er open the phone Bluetooth, Click the “Boomz” to pairing 1. Turn on the speaker, you will hear the boot Boomz 1.Charging with DC5V/1A adaptor or USB Cable 2.While max/minium volume,you can hear a prompt tone Notes:

(Rupt Group Corporation) (November 16, 2023) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for (FCC ID: 2BC3D-BOOMZ) [Rupt Group Corporation] (“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. Sincerely, (Applicant signature) (Applicant printed name) Jason Lucash (Rupt Group Corporation) (November 16, 2023) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for (FCC ID: 2BC3D-BOOMZ) [Rupt Group Corporation] (“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. Sincerely, (Applicant signature) (Applicant printed name) Jason Lucash

Attestation Statements (November 16, 2023) TO: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA RE: Attestation Statements Part 2.911(d)(7) request for (FCC ID: 2BC3D-BOOMZ ) (Rupt Group Corporation), the undersigned, hereby authorize (Rupt Group Corporation) to act as our designated U.S. agent for service of process, (Rupt Group Corporation) 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. (Rupt Group Corporation) accepts the responsibility to act as designated U.S. agent for service of process, provides 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 Information： Company name: Rupt Group Corporation Contact Name: Jason Lucash Address: PO Box 193 Alamo California the United States Telephone No: 13538214502 Email: [email protected] FRN: 0034293498 Signature [Jason Lucash] U.S. Agent Information: Company name: Rupt Group Corporation Contact Name: Jason Lucash Address: PO Box 193 Alamo California the United States Telephone No: 13538214502 Email: [email protected] FRN: 0034293498 Signature [Jason Lucash]

Rupt Group Corporation (November 16, 2023) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Wireless speaker / Boomz / FCC ID: 2BC3D-BOOMZ ) 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 Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☒ Internal Photos ☐ NOTE 1 ☒ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No required to be submitted with this application be permanently withheld from public review. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. Please contact me if there is any information you may need. Sincerely, Signature: Name: Jason Lucash Title: The general manager

Rupt Group Corporation (November 16, 2023) 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 (Shenzhen CTB Testing 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, Signature: Name: Jason Lucash Title: The general manager

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 4 Model: Boomz External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 4 of 4

FCC ID LABEL: Label Location: FCC ID: 2BC3D-BOOMZ Model No.: Boomz

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 4 Model: Boomz Internal Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 4 ANT Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 4 of 4

Shenzhen CTB Testing Co., Ltd. FCC ID:2BC3D-BOOMZ Portable device According to §15.247(e)(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. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(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 When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. EDR: Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion 2.402 -2.99 0.50 -2±1 -1.00 0.79 <5 0.24622 3.00 YES 2.441 -2.601 0.55 -2±1 -1.00 0.79 <5 0.24821 3.00 YES 2.480 -2.519 0.56 -2±1 -1.00 0.79 <5 0.25018 3.00 YES 2.402 -2.182 0.61 -2±1 -1.00 0.79 <5 0.24622 3.00 YES 2.441 -1.75 0.67 -1±1 0.00 1.00 <5 0.31247 3.00 YES 2.480 -1.667 0.68 -1±1 0.00 1.00 <5 0.31496 3.00 YES 2.402 -1.785 0.66 -1±1 0.00 1.00 <5 0.30997 3.00 YES 2.441 -1.425 0.72 -1±1 0.00 1.00 <5 0.31247 3.00 YES 2.480 -1.306 0.74 -1±1 0.00 1.00 <5 0.31496 3.00 YES GFSK π /4DQPSK 8DQPSK BLE:1M Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion 2.402 -2.544 0.56 -2±1 -1.00 0.79 <5 0.24622 3.00 YES 2.44 -2.144 0.61 -2±1 -1.00 0.79 <5 0.24816 3.00 YES 2.480 -1.966 0.64 -1±1 0.00 1.00 <5 0.31496 3.00 YES GFSK 2M Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion 2.402 -2.496 0.56 -2±1 -1.00 0.79 <5 0.24622 3.00 YES 2.44 -2.098 0.62 -2±1 -1.00 0.79 <5 0.24816 3.00 YES 2.480 -1.896 0.65 -1±1 0.00 1.00 <5 0.31496 3.00 YES GFSK Conclusion: For the max result : 0.31496≤ FCC Limit 3.0 for 1g SAR.

Product specification Quick Reference Date Antenna module on the system board Frequenc Range 2400 ~ 2500MHz Ant. Port Input Pwr. (dBm) 0 (Typ. BT class 2 output power) Tot. Rad. Pwr. (dBm) -1.2 (Input pwr – loss pwr) Peak EIRP(dBm) 1.2 Directivity (dBi) 1 (all direction antenna) Efficiency (dB) 6 0.2 % Gain (dBi) 1.2 (Avg Gain XY-plane) Maximum Power (dBm) 1.7 (XY-plane) Minimum Power (dBm) -4(XY-plane) Avg. Power (dBm) -0.5(XY-plane) Input Impendence(ohm) 50 Polarization Type V ertical & Horizontal V . S .W . R < 1.4 All the technical data and information contained herein are subject to ch ange without prior notice Antenna Layout & module on the system board Antenna Gain Gain Table Unit in dBi @2.44GHz XY-plane XZ-plane YZ-plane Efficiency Peak Avg. Peak Avg. Peak Avg. Module Board 1.2 -0.51.2 -3.61.1 -3.06 0.2 % Retum Loss The Environment of Antenna Radiation Pattem 3D radiation pattern diagram XY-plane XZ-plane YZ-plane Manufacturer: Rupt Group Corporation Manufacturer Address: PO Box 193 Alamo California the United States

TEST REPORT Compiled by: Reviewed by: Approved by: Zhou Kui Arron Liu Bin Mei / Director Note: If there is any objection to the inspection results in this report, please submit a written report to the company within 15 days from the date of receiving the report. The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. “*” indicates the testing items were fulfilled by subcontracted lab. “#” indicates the items are not in CNAS accreditation scope. Product Name: Wireless speaker FCC ID: 2BC3D-BOOMZ Trademark: Model Number: Boomz Prepared For: Rupt Group Corporation Address: PO Box 193 Alamo California the United States Manufacturer: Rupt Group Corporation Address: PO Box 193 Alamo California the United States Prepared By: Shenzhen CTB Testing Technology Co., Ltd. Address: 1&2/F., Building A, No.26, Xinhe Road, Xinqiao, Xinqiao Street, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: Oct. 17, 2023 Sample tested Date: Oct. 17, 2023 to Oct. 26, 2023 Issue Date: Oct. 26, 2023 Report No.: CTB231026002RFX Test Standards FCC Part15.247 ANSI C63.10:2013 Test Results PASS Remark: This is Bluetooth radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.:CTB231026002RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 58 TABLE OF CONTENT Test Report Declaration Page 1. VERSION .......................................................................... 4 2. TEST SUMMARY ................................................................... 5 3. MEASUREMENT UNCERTAINTY ..................................................... 6 4. PRODUCT INFORMATION AND TEST SETUP .......................................... 7 4.1 Product Information .................................................................... 7 4.2 Test Setup Configuration ............................................................... 7 4.3 Support Equipment .................................................................... 7 4.4 Channel List .......................................................................... 8 4.5 Test Mode ............................................................................ 8 4.6 Test Environment ...................................................................... 8 5. TEST FACILITY AND TEST INSTRUMENT USED ....................................... 9 5.1 Test Facility ........................................................................... 9 5.2 Test Instrument Used .................................................................. 9 6. AC POWER LINE CONDUCTED EMISSION ............................................ 11 6.1 Block Diagram Of Test Setup .......................................................... 11 6.2 Limit ................................................................................ 11 6.3 Test procedure ....................................................................... 11 6.4 Test Result .......................................................................... 13 7. RADIATED SPURIOUS EMISSION ................................................... 15 7.1 Block Diagram Of Test Setup .......................................................... 15 7.2 Limit ................................................................................ 15 7.3 Test procedure ....................................................................... 16 7.4 Test Result .......................................................................... 17 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS .......................... 26 8.1 Block Diagram Of Test Setup .......................................................... 26 8.2 Limit ................................................................................ 26 8.3 Test procedure ....................................................................... 26 8.4 Test Result .......................................................................... 27 9. COUDUCTED PEAK OUTPUT POWER ............................................... 34 9.1 Block Diagram Of Test Setup .......................................................... 34 9.2 Limit ................................................................................ 34 9.3 Test procedure ....................................................................... 34 9.4 Test Result .......................................................................... 35 10. 20DB OCCUPIED BANDWIDTH...................................................... 39 10.1 Block Diagram Of Test Setup ......................................................... 39 10.2 Limit ............................................................................... 39 10.3 Test procedure ...................................................................... 39 10.4 Test Result ......................................................................... 39 11. CARRIERFREQUENCIES SEPARATION .............................................. 43 11.1 Block Diagram Of Test Setup ......................................................... 43 11.2 Limit ............................................................................... 43 11.3 Test procedure ...................................................................... 43 11.4 Test Result ......................................................................... 43 12. HOPPING CHANNEL NUMBER ...................................................... 47 12.1 Block Diagram Of Test Setup ......................................................... 47 12.2 Limit ............................................................................... 47 12.3 Test procedure ...................................................................... 47 12.4 Test Result ......................................................................... 47…

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Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 2 Model: Boomz Radiated Emission Below 1G Above 1G Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 2 Conducted emissions