2BRT9-T7305YMicrophone

（receiver aerial） GND VDD - 5 / 9V KC KC:Mic Output High Level OUT Microphone LED display window On/off battery compartment Transmitting antenna (PCB Antenna) Long on when turned on Shine under voltage RX TX Instructions for Use Frequency:588.85MHz(The equipment cannot have its transmission frequency changed through software configuration.) Frequency:588.85MHz How to use: 1, long press the power switch, TX/RX automatic connection after boot. 2. Replace the battery in time when the battery symbol flashes. FCC Warning Statement Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 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. FCC Radiation Exposure Statement The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. 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.

ENCORE USA, INC. (18320 BEDFORD CIR, LA PUENTE, California, 91744, United States) Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: (2025/11/24) 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2BRT9-T7305Y ENCORE USA, INC. (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List, established pursuant to § 1.50002 of reference chapter, as an entity producing “covered” communication equipment. The equipment for which authorization is sought is not “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List that prohibited from receiving an equipment authorization pursuant to section § 2.903 of the FCC rules. Sincerely yours, Applicant Signature Printed Name: Lily ming Title: Manager Address: 18320 BEDFORD CIR, LA PUENTE, California, 91744, United States Tel.: 626 715 2618 Email: [email protected]

1 | P a g e ENCORE USA, INC. (18320 BEDFORD CIR, LA PUENTE, California, 91744, United States) Attestation Statements To: Federal Communications Commission Date: (2025/11/24) 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Attestation of Compliance with FCC Covered List Software Requirements FCC ID: [2BRT9-T7305Y] Product Name: [Microphone] This letter serves as an attestation that the equipment identified above ☐ is / ☒ is not (select one) "covered" software as defined under the Federal Communications Commission (FCC) Covered List requirements, as outlined in FCC 22-84 and KDB 986446. Specifically, the undersigned certifies that the equipment for which authorization is sought: 1. Does not contain cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors, assignees, parents, subsidiaries, affiliates, or any entity that has rebranded or relabeled software produced by the aforementioned entities. 2. Does not have the capability to store, run, or deliver any software identified on the FCC Covered List, including but not limited to cybersecurity and anti-virus software. To support this attestation, the appendix evaluation documentation has been prepared and is included in the certification filing. This attestation is based on a thorough evaluation of the device's design, functionality, and software environment. The undersigned affirms that the information provided is accurate and complete to the best of their knowledge. Sincerely yours, Applicant Signature Applicant Signature Printed Name: Lily ming Title: Manager Address: 18320 BEDFORD CIR, LA PUENTE, California, 91744, United States 2 | P a g e Evaluation regarding to the Covered List Software: Compliance Methodology Evaluation Process Results Device is Inherent compliance ☒ The Chipset(s) used is limited to run the Cybersecurity or anti-virus software. Compliance ☒ The Memory used is limited to run the Cybersecurity or anti-virus software. Compliance ☒ There is storage capacity limitation for store or install the Cybersecurity or anti-virus software. Compliance ☒ Operating system used is limited to run, install or deliver the Cybersecurity or anti-virus software. Compliance Device is not Inherent compliance ☐ Evaluation Based on Software Bill of Materials (SBoM) See attached “SBoM“ Note:The SBoM content is limited to the scope of covered list software (e.g. antivirus and cybersecurity software). ☐ Evaluation Based on Scan for Software on the device ☐ Evaluation Based on Filesystem scan ☐ Evaluation Based on Running software check

Rev 1/26/2023 ENCORE USA, INC. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2025/11/24 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID ：2BRT9-T7305Y Applicant FRN: 0037434503 [ENCORE USA, INC.] certifies that, as of the date of the filing of the application, [ENCORE USA, INC.] is our designated U.S. agent for service of process for the above referenced FCC ID. [ENCORE USA, 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. [ENCORE USA, INC.] accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company Name: ENCORE USA, INC. FRN: 0037434503 Address: 18320 BEDFORD CIR, LA PUENTE, California, 91744, United States Contact Person: Lily ming Phone: 626 715 2618 Email: [email protected] Sincerely, [ENCORE USA, INC.] ENCORE USA, INC. [Lily ming] [Lily ming]

ENCORE USA, INC. (18320 BEDFORD CIR, LA PUENTE, California, 91744, United States) (2025/11/24) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request for: FCC ID: 2BRT9-T7305Y Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request permanent confidential treatment of the exhibits accompanying this certification application as outlined below :  Block Diagram  Schematics  Operational Description The above exhibits contain trade secrets and/or proprietary information that are not publicly available and materials that the Applicant has spent considerable efforts in developing. Public disclosure of these may be harmful to the Applicant and give an unfair advantage to competitors on the market. Sincerely, (Signature) Title: Manager Address: 18320 BEDFORD CIR, LA PUENTE, California, 91744, United States Tel.: 626 715 2618 Email: [email protected]

ENCORE USA, INC. (18320 BEDFORD CIR, LA PUENTE, California, 91744, United States) (2025/11/24) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization for FCC ID: 2BRT9-T7305Y I, the undersigned, hereby authorize (Shenzhen BCTC Testing Co., Ltd) to act on our behalf in all matters relating to this application for equipment certification. Any act carried out by (Shenzhen BCTC Testing Co., Ltd) shall have the same effect as our own and I acknowledge that all responsibility for complying with the terms and conditions of certification, as specified by DERYCOM CERTIFICATION SERVICES, INC., still resides with (ENCORE USA, INC.). We certify that we are not subject to a denial of federal benefits that includes FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. §862, and that no party to the application, as defined in 47 CFR §1.2002(b), is subject to a denial of federal benefits that includes FCC benefits pursuant to that section. Sincerely, (Signature) (Full name of contact person listed on FCC’s website): Lily ming (Title): Manager Tel: 626 715 2618 Fax: / Email: [email protected]

Report No.: BCTC2511898716E External Photos Report No.: BCTC2511898716E Report No.: BCTC2511898716E

Label & Location FCC ID: 2BRT9-T7305Y

Report No.: BCTC2511898716E Internal Photos Report No.: BCTC2511898716E Report No.: BCTC2511898716E Antenna

RF EXPOSURE EVALUATION METHOD FCC ID: 2BRT9-T7305Y 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. Frequency Conducted Output Power Antenna Gain EIRP EIRP (MHz) (dBm) (dBi) (dBm) (mW) 588.85 10.732 -0.68 10.052 10.120 max possible output power (PK, conducted)：11±1dBm 11dBm=15.85mW [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 15.85/5*√0.5885=2.43≤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.

20 mm 8 mm 1mm 0.5mm UHF588.85MHZ ANT 588.85MHZ588.85MHZ588.85MHZ588.85MHZ600MHZ600MHZ 200mm Spectral electron 588.85MHz 595MHz 600MHz 595MHz 588.85MHz 600MHz 588.85MHz 595MHz 600MHz 595MHz 588.85MHz 600MHz

No.：BCTC/RF-ICT-005 Page: 1 of 28 Edition：C.0 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2511898716E Applicant: ENCORE USA, INC. Product Name: Microphone Test Model: T7305Y Tested Date: 2025-11-03 to 2025-11-19 Issued Date: 2025-11-19 Report No.: BCTC2511898716E No.：BCTC/RF-ICT-005 Page: 2 of 28 Edition：C.0 FCC ID: 2BRT9-T7305Y 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: Microphone Trademark: Rotasona Model/Type Reference: T7305Y Prepared For: ENCORE USA, INC. Address: 18320 BEDFORD CIR, LA PUENTE, California, 91744, United States Manufacturer: GANZHOU CITY MOSWS ELECTRONICS LTD Address: South of Jinlingxi Road,East of Qifengshan Road,Ganzhou development area Ganzhou city,Jiangxi province,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: 2025-11-03 Sample Tested Date: 2025-11-03 to 2025-11-19 Issue Date: 2025-11-19 Report No.: BCTC2511898716E Test Standards: FCC Part15.236 Test Results: PASS Tested by: Approved by: Shanshan. Zhang / Project Handler Zero Zhou/Reviewer Report No.: BCTC2511898716E No.：BCTC/RF-ICT-005 Page: 3 of 28 Edition：C.0 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information And Test Setup ..................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 9 4.3 Support Equipment ............................................................................................... 9 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 Emissions .......................................................................................... 12 6.1 Block Diagram Of Test Setup .............................................................................. 12 6.2 Limit .................................................................................................................... 12 6.3 Test Procedure ................................................................................................... 12 6.4 EUT Operating Conditions .................................................................................. 12 6.5 Test Result .......................................................................................................... 12 7. Radiated Emissions ............................................................................................. 13 7.1 Block Diagram Of Test Setup .............................................................................. 13 7.2 Limit .................................................................................................................... 14 7.3 Test Procedure ................................................................................................... 15 7.4 EUT Operating Conditions .................................................................................. 15 7.5 Test Result .......................................................................................................... 16 8. RF Output Power (EIRP) ..................................................................................... 20 8.1 Block Diagram Of Test Setup .............................................................................. 20 8.2 Limit .................................................................................................................... 20 8.3 Test Procedure ................................................................................................... 20 8.4 Test Result .......................................................................................................... 20 9. Occupied Bandwidth ........................................................................................... 21 9.1 Block Diagram Of Test Setup .............................................................................. 21 9.2 Limit .................................................................................................................... 21 9.3 Test Procedure ................................................................................................... 21 9.5 Test Result .......................................................................................................... 22 10. Emission Mask (Necessary Bandwidth) .............................................................. 23 10.1 Block Diagram Of Test Setup ............................................................................ 23 10.2 Limit ..............................................................…

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Report No.: BCTC2511898716E Radiated Measurement Photos Spurious emissions