2BN4DPIONEERAUDIO15Wireless BLE Microphone

CC OTH 00072838 2026 TR 410 Terry Avenue North, Seattle, WA, 98109 CFR 47 §2.911(d)(5)(i) Attestation Letter Attestation Letter Date: 2/19/2026 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(i) Filing FCC ID: 2BN4DPIONEERAUDIO15 Bluush LLC (“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, Maria de Lourdes Zollo General Manager (415) 914-4266 [email protected] Bluush LLC 410 Terry Avenue North, Seattle, WA, 98109, United States Docusign Envelope ID: 454C4951-8D44-4640-BFC2-32673A25B457

410 Terry Avenue North, Seattle, WA, 98109 CFR 47 §2.911 (d)(5)(ii) Attestation Letter Attestation Letter Date: 2/23/2026 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(ii) Filing FCC ID: 2BN4DPIONEERAUDIO15 Bluush LLC (“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 and the product does not use Kaspersky's software information. Sincerely, Maria de Lourdes Zollo General Manager (415) 914-4266 [email protected] Bluush LLC 410 Terry Avenue North, Seattle, WA, 98109, United States Docusign Envelope ID: A8C7D182-0442-4D1B-9EB3-A28B9F1A6268

CC OTH 00072838 2026 TR 410 Terry Avenue North, Seattle, WA, 98109 Attestation Letter for Agent 2/19/2026 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911 (d)(7) Filing FCC ID: 2BN4DPIONEERAUDIO15 Bluush LLC certifies that, as of the date of the filing of the application, Bluush LLC is our designated U.S. agent for service of process for the above referenced FCC ID: 2BN4DPIONEERAUDIO15. Bluush LLC agrees 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. Bluush LLC 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: Bluush LLC (FRN: 0036749083) Address: 410 Terry Avenue North, Seattle, WA, 98109, United States Contact person: Maria de Lourdes Zollo Tel: (415) 914-4266 Email: [email protected] Sincerely, Applicant Name Bluush LLC Applicant Printed Name Maria de Lourdes Zollo Applicant Signature Docusign Envelope ID: 454C4951-8D44-4640-BFC2-32673A25B457 CC OTH 00072838 2026 TR 410 Terry Avenue North, Seattle, WA, 98109 Docusign Envelope ID: 454C4951-8D44-4640-BFC2-32673A25B457

CC OTH 00072973 2026 TR 410 Terry Avenue North, Seattle, WA, 98109 QA-FR-170-B 7/29/2014 FCC Authorization 2/19/2026 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We Bluush LLC, the undersigned, hereby authorizes Bay Area Compliance Laboratories Corp. to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Bay Area Compliance Laboratories Corp. on our behalf shall have the same effect as our own action. We, the undersigned, hereby 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. This authorization is valid until further written notice from the applicant. Sincerely Yours, Maria de Lourdes Zollo General Manager (415) 914-4266 [email protected] Bluush LLC 410 Terry Avenue North, Seattle, WA, 98109, United States Docusign Envelope ID: 3F060B16-E7D0-4830-A29A-743DF21A121A

CC OTH 00072982 2026 TR QA-FR-172-A 410 Terry Avenue North, Seattle, WA, 98109 FCC Confidential Authorization 2/19/2026 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2BN4DPIONEERAUDIO15 In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, Bluush LLC, hereby requests long-term confidential treatment of information accompanying this application as outlined below: • Block Diagram • Schematics • Operation Description As well as short-term confidential treatment of information accompanying this application as outlined below: • Internal Photos • User’s Manual • External Photos • Test Set-up Photos The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely, Maria de Lourdes Zollo General Manager (415) 914-4266 [email protected] Bluush LLC 410 Terry Avenue North, Docusign Envelope ID: 7FA45E99-6A46-4FBF-B33E-8541D52AD968 CC OTH 00072982 2026 TR QA-FR-172-A Seattle, WA, 98109, United States Docusign Envelope ID: 7FA45E99-6A46-4FBF-B33E-8541D52AD968

Starting from Home tab of the app: Step 1: Tap Settings icon Step 2: Scroll to and tap "Regulatory information" Step 1: Step 2 :

Bluush LLC FCC ID: 2BN4DPIONEERAUDIO15 Report Number: R2511113-247 Page 16 of 77 FCC Part 15.247 Report 5 FCC §2.1093, §15.247(i) - RF Exposure 5.1 Applicable Standards According to FCC §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. According to FCC KDB 447498 D01 General RF Exposure Guidance v06 Section 4.3.1, Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition, listed below, is satisfied. These test exclusion conditions are based on source-based time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune-up tolerance, and the minimum test separation distance required for the exposure conditions. The minimum test separation distance is determined by the smallest distance from the antenna and radiating structures or outer surface of the device, according to the host form factor, exposure conditions and platform requirements, to any part of the body or extremity of a user or bystander (see 5) of section 4.1). To qualify for SAR test exclusion, the test separation distances applied must be fully explained and justified by the operating configurations and exposure conditions of the transmitter and applicable host platform requirements, typically in the SAR measurement or SAR analysis report, according to the required published RF exposure KDB procedures. When no other RF exposure testing or reporting is required, a statement of justification and compliance must be included in the equipment approval, in lieu of the SAR report, to qualify for the SAR test exclusion. When required, the device specific conditions described in the other published RF exposure KDB procedures must be satisfied before applying these SAR test exclusion provisions; for example, handheld PTT two-way radios, handsets, laptops & tablets etc. 1) 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 • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below 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 according to 5) in section 4.1 is applied to determine SAR test exclusion. 2) At 100 MHz to 6 GHz and for test separation distances > 50 mm, the SAR test exclusion threshold is determined according to the following, and as illustrated in Appendix B: a) [Power allowed at numeric threshold for 50 mm in step 1) + (test separation distance - 50 mm)·( f(MHz)/150)] mW, at 100 MHz to 1500 MHz b) [Power allowed at numeric threshold for 50 mm in step 1) + (test separation distance - 50 mm)·10] mW at > 1500 MHz and ≤ 6 GHz 3) At frequencies below 100 MHz, the following may be considered for SAR test exclusion, and as illustrated in Appendix C: Bluush LLC FCC ID: 2BN4DPIONEERAUDIO15 Report Number: R2511113-247 Page 17 of 77 FCC Part 15.247 Report a) The power threshold at the corresponding test separation distance at 100 MHz in step 2) is multiplied by [1 + log(100/f(MHz))] for test separation distances > 50 mm and < 200 mm b) The power threshold determined by the equation in a) for 50 mm and 100 MHz is multiplied by ½ for test separation distances ≤ 50 mm c) SAR measurement procedures are not established below 100 MHz. When SAR test exclusion cannot be applied, a KDB inquiry is required to determine SAR evaluation requirements for any test results to be acceptable. Test exclusion is applied to the required test channels on a channel by channel basis. When SAR evaluation is required by the hotspot mode or UMPC mini-tablet procedures, that is, where an antenna is ≤ 2.5 cm from a surface or edge, the test separation distance from the phantom to the antenna or device enclosure, as appropriate, should be applied to determine further SAR test exclusion according to the criteria in this document. Do not use the antenna to device surface or edge distance. This is equivalent to the formula written as: [(max. power of channel, including tune-up tolerance, mW)/(60 √ f(GHz) mW)]·[20 mm/(min. test separation distance, mm)] ≤ 1.0 for 1-g SAR; also see Appendix A for approximate exclusion threshold numerical values at selected frequencies and distances. Bluush LLC FCC ID: 2BN4DPIONEERAUDIO15 Report Number: R2511113-247 Page 18 of 77 FCC Part 15.247 Report 5.2 Test Exclusion BLE Standalone Maximum output power at antenna input terminal (dBm): Maximum output power at antenna input terminal with tune up tolerance (dBm): 6.517 7.517 Maximum output power at antenna input terminal (mW): 5.645 Transmit frequency (GHz): 2.480 Minimum test separation distance (mm): 5 Calculated SAR test exclusion threshold: 1.778 SAR test exclusion threshold limit: ≤ 3 The device is compliant with the SAR test exclusion threshold limit. The maximum SAR test exclusion threshold calculated is 1.778. Limit is ≤ 3.

Datasheet Version: 1.1 https://www.bee.computer/ 1 / 3 Bluush, Inc. (Bee) BPA-WA-01 Antenna Datasheet Model Number: BPA-WA-01 Description: 2.4 GHz Wire Antenna Frequency band: 2.40 – 2.48 GHz Max in-band Gain: 5.4 dBi Manufacturer: Bluush, Inc. (Bee) 1770 Broadway #603 San Francisco, CA 94109 USA BPA-WA-01 Antenna Datasheet https://www.bee.computer/ 2 / 3 Bluush, Inc. (Bee) Antenna Horizontal, XY Polar Plots, 2.4GHz Antenna Vertical, XY Polar Plots, 2.4GHz BPA-WA-01 Antenna Datasheet https://www.bee.computer/ 3 / 3 Bluush, Inc. (Bee) Antenna Horizontal, XZ Polar Plots, 2.4GHz Antenna Vertical, XY Polar Plots, 2.4GHz

Note: This test report was prepared for the customer shown above and for the device described herein. It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. This test report shall not be used by the customer to claim product certification, approval, or endorsement by A2LA or any agency of the United States Government or any foreign government. * This test report may contain data and test methods that are not covered by BACL’s scope of accreditation as of the test report date shown above. These items are marked within the test report text with an asterisk “*” FCC PART 15, SUBPART C TEST REPORT For Bluush LLC 410 Terry Avenue North Seattle, WA 98109, USA FCC ID: 2BN4DPIONEERAUDIO15 R e p o r t T y p e : O r i g i n a l R e p o r t P r o d u c t T y p e : W i r e l e s s B L E M i c r o p h o n e Prepared By: Libass Thiaw RF Test Engineer Report Number: R2511113-247 Report Date: 2026-04-02 Reviewed By: Rachana Khanduri RF Project Engineer Bay Area Compliance Laboratories Corp. 1274 Anvilwood Avenue, Sunnyvale, CA 94089, USA Tel: (408) 732-9162 Fax: (408) 732-9164 Bluush LLC FCC ID: 2BN4DPIONEERAUDIO15 Report Number: R2511113-247 Page 2 of 77 FCC Part 15.247 Report TABLE OF CONTENTS 1 GENERAL DESCRIPTION ...................................................................................................................................... 5 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ............................................................................ 5 1.2 MECHANICAL DESCRIPTION OF EUT ................................................................................................................... 5 1.3 OBJECTIVE ........................................................................................................................................................... 5 1.4 RELATED SUBMITTAL(S)/GRANT(S) ..................................................................................................................... 6 1.5 TEST METHODOLOGY .......................................................................................................................................... 6 1.6 MEASUREMENT UNCERTAINTY ............................................................................................................................ 6 1.7 TEST FACILITY REGISTRATIONS ........................................................................................................................... 6 1.8 TEST FACILITY ACCREDITATIONS ........................................................................................................................ 7 2 SYSTEM TEST CONFIGURATION ..................................................................................................................... 11 2.1 JUSTIFICATION ................................................................................................................................................... 11 2.2 EUT EXERCISE SOFTWARE ................................................................................................................................ 11 2.3 DUTY CYCLE CORRECTION FACTOR .................................................................................................................. 11 2.4 EQUIPMENT MODIFICATION ............................................................................................................................... 13 2.5 LOCAL SUPPORT EQUIPMENT ............................................................................................................................. 13 2.6 REMOTE SUPPORT EQUIPMENT .......................................................................................................................... 13 2.7 POWER SUPPLY AND LINE FILTERS .................................................................................................................... 13 2.8 INTERFACE PORTS AND CABLING ....................................................................................................................... 13 3 SUMMARY OF TEST RESULTS ........................................................................................................................... 14 4 FCC §15.203 – ANTENNA REQUIREMENTS ..................................................................................................... 15 4.1 APPLICABLE STANDARDS .................................................................................................................................. 15 4.2 ANTENNA DESCRIPTION ..................................................................................................................................... 15 5 FCC §2.1093, §15.247(I) - RF EXPOSURE ............................................................................................................ 16 5.1 APPLICABLE STANDARDS .................................................................................................................................. 16 5.2 TEST EXCLUSION ............................................................................................................................................... 18 6 FCC §15.207 – AC LINE CONDUCTED EMISSIONS ........................................................................................ 19 6.1 APPLICABLE STANDARDS .................................................................................................................................. 19 6.2 TEST SETUP........................................................................................................................................................ 19 6.3 TEST PROCEDURE .............................................................................................................................................. 19 6.4 CORRECTED AMPLITUDE & MARGIN CALCULATION ......................................................................................... 20 6.5 TEST SETUP BLOCK DIAGRAM .............................................…

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