2A6FC-PRT20275wireless microphone

SPECS: Combination property: dynamic range: ＞90dB armonic distortion: ＜0.5% frequency of response: 40Hz~18kHz AUDIO OUTPUT: stand alone type : 0~±400mV Hybrid: 0~±200mV Temperature range: -10~50°C Opereation specification: Radius 50m Receiving Distance: ＞20米 3V microphone（launch） modulation system: FM Maximum percentage modulation: ±30kHz Ultraharmonics: Below the main wave reference 60dB more than Power voltage: 2*1.5V battery Battery life: 2-3 hours DASH RECEIVER: Power voltage: DC+5.8-8V/40mA Consumed power: 0.3W SNR: ＞73dB Image Interference Ratio : ＞80dB ACIR: ＞80dB Receive sensitivity: ＞12dBu (S/N=20dB) Product accessories list: 3V microphone tube 1pc size：long 240CM RX-199receiver board 1pc antenna:1*300MM FCC Caution： 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. 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 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

SOUND AROUND INC 2023.04.10 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 2A6FC-PRT20275 [SOUND AROUND 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): Roby Wu SOUND AROUND INC 2023.04.10 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 2A6FC-PRT20275 [SOUND AROUND 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): Roby Wu

SOUND AROUND INC U.S. Agent Designation for Service of Process (Applicant and U.S. Agent are Separate Parties) TO : Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA A TTENTION: FCC Certification – Section 2.911(d)(7) Information Designated U.S. Agent Company Name: SOUND AROUND INC FRN: 0032254179 Contact Name: Roby Wu Street Address: 1600 63 rd Street, City/Province/Zip: Brooklyn , New York 11204 Telephone No: 18124072989 Email: [email protected] Th is letter is to confirm that we (“the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. U .S. Agent Signature: Da te:2023.04.07 Sig ned by (Printed Name/Title): Roby Wu/Manger T he Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. A pplicant Company name: SOUND AROUND INC Grantee Code: 2A6FC FCC ID:2A6FC-PRT20275 Contact Name: Roby Wu Street Address: 1600 63rd. Street, Brooklyn NY 11204- USA Telephone No: 18124072989 Email: [email protected] A pplicant Signature: Date: 2023-04-07 Signed by (Printed Name/Title):Roby Wu/Manger

SOUND AROUND INC 2023.04.10 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: wireless microphone Trademark: N/A MODEL: PRT202.75 FCC ID:2A6FC-PRT20275 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 - Schematics - Operational Description 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, Client’s signature: Client’s name / title : Roby Wu / Manager Contact information / address: 1600 63rd. Street, Brooklyn NY 11204- USA

SOUND AROUND INC 2023.04.10 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen BCTC Testing 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, Client’s signature: Client’s name / title : Roby Wu / Manager Contact information / address: 1600 63rd. Street, Brooklyn NY 11204- USA

External Photos

Label & label location 20mm*10mm FCC ID:2A6FC-PRT20275 Label location

Internal Photos Antenna

RF EXPOSURE EVALUATION METHOD FCC ID:2A6FC-PRT20275 Applicable standard： In accordance with FCC 47 CFR part 2 (2.1093) this device has been defined as a portable device which is defined as a transmitting device designed to be used so that the radiating structure(s) of the device is/are within 20 centimeters of the body of the user. Portable devices must be evaluated using the specified in FCC 47 CFR part 2 (2.1093) and ANSI/IEEEC95.1-1992. and had been tested in accordance with the measurement methods and procedures specified in IEEE 1528-2003. Per FCC KDB 447498 D01 v06, the 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances s 50 mm are determined by: SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. The 1-g 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 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 is applied to determine SAR test exclusion. Modulation Test Channel Output Power (dBm) FM 202.75 -6.672 max possible output power (PK,ERP)：-7±1dBm 0dBi logarithmic terms convert to numeric result is nearly 1.000 -6dBm=0.25mW [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]=0.25/5*√0.20275=0.02≤3.0 Conclusion: 1. [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] * [√f(GHz)] < 3.0. 2. SAR Test Exclusion Thresholds is 3.0 for separation distance 5mm. Therefore, SAR test is not required.

SIZE:(mm)

No.：BCTC/RF-EMC-00 5 Page: 1 of 33 Edition：A.5 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2303312407E Applicant: SOUND AROUND INC Product Name: wireless microphone Model/Type Ref.: PRT202.75 Tested Date: 2023-03-21 to 2023-04-07 Issued Date: 2023-04-07 Report No.: BCTC2303312407E No.：BCTC/RF-EMC-00 5 Page: 2 of 33 Edition：A.5 FCC ID:2A6FC-PRT20275 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 BCTC Testing Co., Ltd, this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. Product Name: wireless microphone Trademark: N/A Model/Type Ref.: PRT202.75 Prepared For: SOUND AROUND INC Address: 1600 63rd. Street, Brooklyn NY 11204- USA Manufacturer: SHENZHEN DELUXE-AV ELECTRONICS CO.,LTD Address: Building A, Tianxin Industrial park, Gushu, Bao'an District, Shenzhen, China Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2023-03-21 Sample tested Date: 2023-03-21 to 2023-04-07 Issue Date: 2023-04-07 Report No.: BCTC2303312407E Test Standards: FCC Part 15.236 Test Results: PASS Tested by: Approved by: Jeff.Fu/Project Handler Zero Zhou/Reviewer Report No.: BCTC2303312407E No.：BCTC/RF-EMC-00 5 Page: 3 of 33 Edition：A.5 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Summary Of Test Results ..................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information And Test Setup ..................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 8 4.3 Support Equipment ............................................................................................... 8 4.4 Channel List .......................................................................................................... 9 4.5 Test Mode ............................................................................................................. 9 5. Test Facility And Test Instrument Used ............................................................... 10 5.1 Test Facility ......................................................................................................... 10 5.2 Test Instrument Used .......................................................................................... 10 6. Conducted Emission Measurement ..................................................................... 12 6.1 Power Line Conducted Emission Limits((Frequency Range 150KHz-30MHz) .... 12 6.2 Test Procedure ................................................................................................... 12 6.3 Deviation From Test Standard ............................................................................ 12 6.4 Test Setup ........................................................................................................... 13 6.5 EUT Operating Conditions .................................................................................. 13 6.6 Test Result .......................................................................................................... 13 7. Radiated Spurious Emissions .............................................................................. 14 7.1 Test Requirement ............................................................................................... 14 7.2 Test Procedure ................................................................................................... 14 7.3 Deviation From Test Standard ............................................................................ 15 7.4 Test Setup ........................................................................................................... 15 7.5 EUT Operating Conditions .................................................................................. 16 7.6 Test Results (Between 9KHz – 30MHz) .............................................................. 17 8. Maximum Radiated Power .................................................................................. 21 8.1 Test Requirement ............................................................................................... 21 8.2 Test Procedure ................................................................................................... 21 8.3 Deviation From Standard .................................................................................... 22 8.4 Test Setup ........................................................................................................... 22 8.5 EUT Operation during Test ................................................................................. 22 8.6 Test Result ........................................................................................................ 23 9. Bandwidth Test & Emission Mask ....................................................................... 24 9.1 Applied Procedures / Limit .................................................................................. 24 9.2 Test Procedure ................................................................................................... 24 9.3 Deviation From Standard .................................................................................... 25 9.4 Test Setup ...................................................................................…

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Report No.: BCTC2303312407E No.：BCTC/RF-EMC-00 5 Page: 32 of 33 Edition：A.5 13. EUT Test Setup Photographs Radiated Measurement Photos