PXU-BT-A2Bluetooth Module

UNITED STATES DESIGNATED AGENT LETTER TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Applicant Company Name: FRN: Grantee Code: Contact Name: Address: Telephone: Fax: Email: Shenzhen Breo Technology Co.,Ltd 0022105993 PXU Harvey zhou 19/F, Hisense Southern Building No.1777, Chuangye road, NanShan District Shenzhen City, Guangdong Province 518054 China +86-755-82073336 +86-755-82073434 zhouy@b 「 eo.com Regarding: FCC ID: PXU-BT-A2 Date: 2026/05/06 U.S. designated agent Company Name: United Consulting Technology Services Co., Ltd. FRN: 0033495714 Contact Name Address: Telephone: Fax: Email: David Wu 17800 CASTLETON ST STE 665 CITY OF INDUSTRY CA 91748 United States (626)217-4022 [email protected] We, < Shenzhen Breo Technology Co.,Ltd > and < United Consulting Technology Services Co., Ltd. > understand and acknowledge the applicants consent and the designated agent's obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and e-mail of the designated agent listed above. We, < Shenzhen Breo Technology Co.,Ltd > and < United Consulting Technology Services Co., Ltd. > acknowledge the applicant's acceptance of its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Applicant Name (Printed): Harvey zhou Title: Compliance Certification Engineer Signatu 「 e ： 打 勹 沁 U.S. designated agent Name (Printed): David Wu Title: CEO Signature:

Model Name： Buletooth Module Model No.：BREO-BT-A2 Shenzhen Breo Technoligy Co., Ltd FCC ID：PXU-BT-A2 CMIIT ID: **********

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260400177604 Page: 1 of 11 Keny Xu EMC Laboratory Manager RF EXPOSURE EVALUATION REPORT Application No.: SZCR2604001776AT Applicant: Shenzhen Breo Technology Co.,Ltd Address of Applicant: 19/F, Hisense Southern Building No.1777, Chuangye road, NanShan District, Shenzhen City, Guangdong Province 518054, China Manufacturer: Shenzhen Breo Technology Co., Ltd. Address of Manufacturer: 19/F., Hisense Southern Building, 1777 Chuangye Road, Nanshan, Shenzhen, Guangdong, China Factory: Shiyan Branch of Shenzhen Breo Technology Co., Ltd Address of Factory: Room 1001, Building 2, Phase Il. Fenda Science and Technology Park, Baoyuan Community, ShiyanStreet. Baoan District, Shenzhen City, 518108 Guangdong, P.R. China Equipment Under Test (EUT): EUT Name: Bluetooth Module Model No.: BREO-BT-A2 Trade Mark: breo FCC ID: PXU-BT-A2 Standard(s) : FCC Rules 47 CFR §2.1091 KDB 447498 D04 interim General RF Exposure Guidance v01 Date of Receipt: 2026-04-28 Date of Evaluation: 2026-05-07 to 2026-06-02 Date of Issue: 2026-06-02 Evaluation Result: Pass* * In the configuration evaluated, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260400177604 Page: 2 of 11 Revision Record Version Chapter Date Modifier Remark 01 2026-06-02 Original Authorized for issue by: Edison Li/Project Engineer Eric Fu/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260400177604 Page: 3 of 11 2 Contents Page 1 Cover Page ......................................................................................................................................... 1 2 Contents ............................................................................................................................................. 3 3 General Information............................................................................................................................ 4 3.1 General Description of E.U.T. ....................................................................................................... 4 3.2 Details of E.U.T. ........................................................................................................................... 4 3.3 Separation Distance ..................................................................................................................... 4 3.4 Test Location ............................................................................................................................... 5 3.5 Test Facility .................................................................................................................................. 5 3.6 Deviation from Standards ............................................................................................................. 5 3.7 Abnormalities from Standard Conditions ....................................................................................... 5 4 FCC Radiofrequency radiation exposure limits ................................................................................ 6 4.1 Blanket 1 mW Blanket Exemption ................................................................................................. 6 4.2 MPE-based Exemption ................................................................................................................. 6 4.3 SAR-based Exemption ................................................................................................................. 7 4.4 RF Exposure Test Exemptions for Simultaneous Transmission..................................................... 9 5 Measurement and Calculation ..........................................................................................................10 5.1 Maximum transmit power ............................................................................................................10 5.2 RF Exposure Calculation .............................................................................................................10 6 EUT Constructional Details (EUT Photos) ........................................................................................11 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260400177604 Page: 4 of 11 3 General Information 3.1 General Description of E.U.T. Product Type: Portable device Mobile device Fixed device 3.2 Details of E.U.T. Power supply: DC 5V powered by Serial board For Bluetooth Classic mode Operation Frequency: 2402MHz to 2480MHz Bluetooth Version: V5.3 Modulation Type: GFSK, pi/4DQPSK, 8DPSK Number of Channels: 79 Channel Spacing: 1MHz Spectrum Spread Technology: Frequency Hopping Spread Spectrum(FHSS) Antenna Type: PCB Antenna Antenna Gain: -0.23dBi For Bluetooth LE Operation Frequency: 2402MHz to 2480MHz Bluetooth Version: V5.3 Modulation Type: GFSK Number of Channels: 40 Channel Spacing: 2MHz Data rate: 1Mbps, 2Mbps Antenna Type: PCB Antenna Antenna Gain: -0.23dBi Remark:The information in this section is provided by the applicant or manufacturer, SGS is not liable to the accuracy, suitability, reliability or/and integrity of the information. 3.3 Separation Distance Minimum test separation distance: 20cm Remark: This 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. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260400177604 Page: 5 of 11 3.4 Test Location All tests were performed at: SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen Branch No. 1 Workshop, M-10, Middle Section, Science & Technology Park…

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Content 1.GeneralDescription.................................................................................1 2.TestConfigurations...................................................................................2 2.1TestEnvironment............................................................................2 2.2TestEquipment...............................................................................2 2.3TestPrinciple...................................................................................2 3.TestResults..............................................................................................3 3.1GainandEfficiency..........................................................................3 3.2RadiationPattern............................................................................4 4.AntennaDimensions................................................................................6 5.EUTPhoto................................................................................................6 6.TestSetupPhoto......................................................................................7 Antenna Specification 1 1.GeneralDescription Manufacturer Shenzhen FeiTeng Yun TECHNOLOGY CO.,LTD Address 401, Building 1, No. 200 Kejie 2nd Road, Shutianpu Community, Matian Street, Guangming District, ShenzhenGuangdong TestLocation 401, Building 1, No. 200 Kejie 2nd Road, Shutianpu Community , Matian Street, Guangming District, ShenzhenGuangdong ProductNameBREO-BT-A2 Antenna Productmodel BREO-BT-A2 AntennaType PCBAntenna TestItems Gain;Efficiency;RadiationPattern TestFrequency 2400-2500MHz TestStandard ANSI/IEEEStd149-1979 2 2.TestConfigurations 2.1TestEnvironment Temperature(°C)25 Humidity(%RH)60 AtmosphericPressure(kPa)100.5 2.2TestEquipment TestSystemTEM24Multi-probeMicrowaveChamber TestInstrumentAgilentE5071B 2.3TestPrinciple 3 3.TestResults 3.1GainandEfficiency Frequency(MHz)PeakGain(dBi)Efficiency(%) 2400 -1.21 22.39 2410 -1.01 23.07 2420 -0.55 23.71 2430 -0.39 24.43 2440 -0.28 25.12 2450 -0.26 25.64 2460 -0.32 25.41 2470 -0.23 25.59 2480 -0.53 25.06 2490 -0.48 24.95 2500 -0.96 23.50 4 3.2RadiationPattern Phi02D Phi902D Theta902D 5 2400MHz3D 2450MHz3D 2500MHz3D 6 4.AntennaDimen sions Unit: mm 5.EUT Photo 7 6.TestSetupPhoto

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260400177602 Page: 1 of 92 Keny Xu EMC Laboratory Manager TEST REPORT Application No.: SZCR2604001776AT Applicant: Shenzhen Breo Technology Co.,Ltd Address of Applicant: 19/F, Hisense Southern Building No.1777, Chuangye road, NanShan District, Shenzhen City, Guangdong Province 518054, China Manufacturer: Shenzhen Breo Technology Co., Ltd. Address of Manufacturer: 19/F., Hisense Southern Building, 1777 Chuangye Road, Nanshan, Shenzhen, Guangdong, China Factory: Shiyan Branch of Shenzhen Breo Technology Co., Ltd Address of Factory: Room 1001, Building 2, Phase Il. Fenda Science and Technology Park, Baoyuan Community, ShiyanStreet. Baoan District, Shenzhen City, 518108 Guangdong, P.R. China Equipment Under Test (EUT): EUT Name: Bluetooth Module Model No.: BREO-BT-A2 Trade Mark: breo FCC ID: PXU-BT-A2 Standard(s) : 47 CFR Part 15, Subpart C 15.247 Date of Receipt: 2026-04-28 Date of Test: 2026-05-07 to 2026-06-02 Date of Issue: 2026-06-02 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260400177602 Page: 2 of 92 Revision Record Version Chapter Date Modifier Remark 01 2026-06-02 Original Authorized for issue by: Edison Li/Project Engineer Eric Fu/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260400177602 Page: 3 of 92 2 Test Summary Radio Spectrum Technical Requirement Item Standard Method Requirement Result Antenna Requirement 47 CFR Part 15, Subpart C 15.247 N/A 47 CFR Part 15, Subpart C 15.203 & 15.247(b)(4) Pass Other requirements Frequency Hopping Spread Spectrum System Hopping Sequence N/A 47 CFR Part 15, Subpart C 15.247(a)(1),(g),(h) Pass Radio Spectrum Matter Part Item Standard Method Requirement Result Conducted Emissions at AC Power Line (150kHz-30MHz) 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2020) Section 6.2 47 CFR Part 15, Subpart C 15.207 Pass Radiated Emissions which fall in the restricted bands ANSI C63.10 (2020) Section 6.10.5 & 7.8.8 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Below 1GHz ANSI C63.10 (2020) Section 6.4,6.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Above 1GHz ANSI C63.10 (2020) Section 6.6 & 7.8.8 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Maximum Conducted Output Power ANSI C63.10 (2020) Section 7.8.5 47 CFR Part 15, Subpart C 15.247(b)(1) Pass 20dB Bandwidth ANSI C63.10 (2020) Section 6.9.2 47 CFR Part 15, Subpart C 15.247(a)(1) Pass Carrier Frequencies Separation ANSI C63.10 (2020) Section 7.8.2 47 CFR Part 15, Subpart C 15.247a(1) Pass Hopping Channel Number ANSI C63.10 (2020) Section 7.8.3 47 CFR Part 15, Subpart C 15.247a(1)(iii) Pass Dwell Time ANSI C63.10 (2020) Section 7.8.4 47 CFR Part 15, Subpart C 15.247a(1)(iii) Pass Conducted Band Edges Measurement ANSI C63.10 (2020) Section 7.8.7.2 47 CFR Part 15, Subpart C 15.247(d) Pass Conducted Spurious Emissions ANSI C63.10 (2020) Section 7.8.7 47 CFR Part 15, Subpart C 15.247(d) Pass SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch SZEMC-TRF-01 Rev. A/2 Report No.: SZCR260400177602 Page: 4 of 92 3 Contents Page 1 Cover Page ......................................................................................................................................... 1 2 Test Summary ..................................................................................................................................... 3 3 Contents ............................................................................................................................................. 4 4 General Information............................................................................................................................ 6 4.1 Details of E.U.T. ........................................................................................................................... 6 4.2 Description of Support Units ......................................................................................................... 6 4.3 Measurement Uncertainty ............................................................................................................ 7 4.4 Test Location ............................................................................................................................... 8 4.5 Test Facility .................................................................................................................................. 8 4.6 Deviation from Standards ............................................................................................................. 8 4.7 Abnormalities from Standard Conditions ....................................................................................... 8 5 Equipment List ................................................................................................................................... 9 6 Radio Spectrum Technical Requirement ..........................................................................................11 6.1 Antenna Requirement .................................................................................................................11 6.1.1 Test Requirement: ..................................................................................................................11 6.1.2 Conclusion ..............................................................................................................................11 6.2 Other requirements Frequency Hopping Spread Spectrum System Hopping Sequence ...............12 6.2.1 Test Requirement: ..................................................................................................................12 6.2.2 Conclusion ..................................................................…

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