2A743-01Music

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 interfer ence, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment . 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 ar e 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 interfer ence 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 meas ures: -- 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.The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction

(SONR inc.) (July 27, 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: 2A743-01) [SONR inc.] (“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) Serghei Logvinenco (SONR inc.) (July 27, 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: 2A743-01) [SONR inc.] (“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) Serghei Logvinenco

Attestation Statements (July 27, 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: 2A743-01 ) (SONR inc.), the undersigned, hereby authorize (SONR inc.) to act as our designated U.S. agent for service of process, (SONR inc.) 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. (SONR inc.) 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: SONR inc. Contact Name: Serghei Logvinenco Address: 220 east 23rd st, Suite #400 New York, NY 10010 Telephone No: 13538214502 Email: [email protected] U.S. Agent Information: Company Name: SONR inc. Address: 220 east 23rd st, Suite #400 New York, NY 10010 Contact Name: Serghei Logvinenco Telephone No: 13538214502 Email: [email protected] FRN: 0032697096 Applicant Signature: Agent Signature: Applicant printed name: Serghei Logvinenco Agent printed name: Serghei Logvinenco

SONR inc. (July 27, 2023) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Music / 01 / FCC ID: 2A743-01 ) 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: Serghei Logvinenco Title: Manager

SONR inc. (July 27, 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: Serghei Logvinenco Title: Manager

External Photos

FCC ID LABEL: Label Location: FCC ID: 2A743-01 Model No.: 01

Internal Photos ANT

Shenzhen CTB Testing Co., Ltd. FCC ID:2A743-01 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. BLE: 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 -3.471 0.45 -3±1 -2.00 0.63 <5 0.19558 3.00 YES 2.44 -2.778 0.53 -2±1 -1.00 0.79 <5 0.24816 3.00 YES 2.480 -3.998 0.40 -3±1 -2.00 0.63 <5 0.19873 3.00 YES GFSK Conclusion: For the max result : 0.24816≤ FCC Limit 3.0 for 1g SAR.

OTA-800 Brand：ETS Frequency range：370MHz-8.5GHz Function: passive, active test; G network, C network, 2G/3G/4G, WIFI, BT and other standard TRP, TIS test. Device under test 5071C Brand：安捷伦 Frequency range：9KHz-8.5GHz Function: 2G/3G/4G/BT/WIFI antenna comprehensive passive test. 8960 Brand：安捷伦 Function ：292MHz-2700GHz功能： Meet 2G/3G active test. CMW500 Brand：罗德与施瓦茨 Function：70KHz-6GHz Functions: 2G/3G/4G/BT/WIFI/ NB-LOT and other antennas comprehensive active test. 3.Physical picture of antenna assembly position antenna size 电性能指标Electrical Parameter 频率范围(MHz) Frequency Range (MHz)2400~2500 电压驻波比 VSWR≤7.0 输入阻抗(Ω) Input Impedance(Ω)50 增益(dBi) Gain(dBi)0.89 极化形式(°)Polarization(°) vertical 最大功率(W) Max power(W)10 天线类型 Antenna TypeMonopole 工作温度(°C)Working Temperature(°C) -40~+80 4.Electrical performance index 5.Antenna passive data FreqEffiGain (MHz)(%)(dBi) 2400 1.60.89 2410 1.360.87 2420 1.770.86 2430 1.450.85 2440 1.420.79 2450 1.180.78 2460 1.630.77 2470 1.010.76 2480 10.69 2490 0.730.61 2500 1.420.67 6.Antenna gain/efficiency /3D Apple diagram 7.Antenna pattern

Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB230720001RFX Report Tel: 4008-707-283Web: http://www.ctb-lab.net Page 1 of 35 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: Music FCC ID: 2A743-01 Trademark: N/A Model Number: 01 Prepared For: SONR inc. Address: 220 east 23rd st, Suite #400 New Yo r k , NY 10010 Manufacturer: DONGGUAN CENTS INDUSTRIAL CO.,LTD Address: 10st Floor, No.153 of Zhenxing Building, Zhen'an East Road, Chang'an Town, Dongguan City. 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: Jul. 13, 2023 Sample tested Date: Jul. 13, 2023 to Jul. 21, 2023 Issue Date: Jul. 21, 2023 Report No.: CTB230720001RFX 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.: CTB230720001RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 35 TABLE OF CONTENT Test Report Declaration Page 1. VERSION ........................................................................................................................................ 3 2. TEST SUMMARY ........................................................................................................................... 4 3. MEASUREMENT UNCERTAINTY ................................................................................................. 5 4. PRODUCT INFORMATION AND TEST SETUP ............................................................................ 6 4.1 Product Information .......................................................................................................................... 6 4.2 Test Setup Configuration .................................................................................................................. 6 4.3 Support Equipment........................................................................................................................... 6 4.4 Channel List ..................................................................................................................................... 7 4.5 Test Mode ........................................................................................................................................ 7 4.6 Test Environment ............................................................................................................................. 7 5. TEST FACILITY AND TEST INSTRUMENT USED ....................................................................... 8 5.1 Test Facility ...................................................................................................................................... 8 5.2 Test Instrument Used ....................................................................................................................... 8 6. AC POWER LINE CONDUCTED EMISSION ................................................................................ 10 6.1 Block Diagram Of Test Setup ......................................................................................................... 10 6.2 Limit ................................................................................................................................................ 10 6.3 Test procedure ............................................................................................................................... 10 6.4 Test Result ..................................................................................................................................... 12 7. RADIATED SPURIOUS EMISSION ............................................................................................. 14 7.1 Block Diagram Of Test Setup ......................................................................................................... 14 7.2 Limit ................................................................................................................................................ 14 7.3 Test procedure ............................................................................................................................... 15 7.4 Test Result ..................................................................................................................................... 16 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS ............................................... 23 8.1 Block Diagram Of Test Setup ......................................................................................................... 23 8.2 Limit ................................................................................................................................................ 23 8.3 Test procedure ............................................................................................................................... 23 8.4 Test Result ..................................................................................................................................... 24 9. COUDUCTED OUTPUT POWER ................................................................................................. 26 9.1 Block Diagram Of Test Setup ............................................................…

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Radiated Emission Below 1G Above 1G Conducted emissions