FCC ID: PXU-BT-A1 Bluetooth Module

JIASHI Communication Co.,Ltd. JS-BTM657 JIASHI Bluetooth Module Data Sheet Document Type:

Bluetooth Module Datasheet Document Version: V1.0 Release Date:

February 9, 2023 Copyright 2012 by Fihoenst Communication Co., Ltd. All Rights Reserved. Reproduction of this document, in part of in whole, by any means is prohibited without written permission from JIASHI Communication Co., Ltd. The information contained herein is believed to be accurate as of the date of publication. However, Fihonest is not liable for any damages, including indirect or consequential from the use of software this document represents, or any reliance of the accuracy of this document. JIASHI reserves the right to change the contents of this document at any time without notice. This document contains proprietary confidential trade secrets and may be subject to additional restrictions contained in the licensing agreement under which this document was obtained. JIASHI Communication Co.,Ltd 1 Proprietary and Confidential JIASHI Communication Co.,Ltd. Revision History Date Version Description Author 2023-2-9 V1.0 First release JIASHI Communication Co.,Ltd 2 Proprietary and Confidential JIASHI Communication Co.,Ltd. CONTENT 1. INTRODUCTION............................................................................................................................................................... 4 1.1 1.2 1.3 BLOCK DIAGRAM............................................................................................................................................................... 4 FEATURES .......................................................................................................................................................................... 5 APPLICATIONS ................................................................................................................................................................... 6 2. GENERAL SPECIFICATION .......................................................................................................................................... 7 3. PHYSICAL CHARACTERISTIC..................................................................................................................................... 8 3.1 Pin Description.............................................................................................................................................................9-12 4. ELECTRICAL CHARACTERISTIC .............................................................................................................................13 4.1 4.1 4.3 4.4 4.5 Absolute maximum ratings .................................................................................................................................................. 13 Battery Charge ................................................................................................................................................................13 DAC Characteristics ..........................................................................................................................................................13 ADC Characteristicst.............................................................................................................................................. .....14 RF characteristics.............................................................................................................................................................14 5. REFLOW PROFILE15 6. PACKAGING INFORMATION ....................................................................................................................................16 7.FCC regulatory compliance statement .........................................................................................................16-17 JIASHI Communication Co.,Ltd 3 Proprietary and Confidential JIASHI Communication Co.,Ltd. 1. INTRODUCTION 1.1 Block Diagram Antenna MIC I2C Key Line in AC6956C 32-

bit Risc Crystal

(24MHz) PIOs USB Decode Analogue/

SPDIF/I2S LCD/LED UART IR JIASHI Communication Co.,Ltd 4 Proprietary and Confidential JIASHI Communication Co.,Ltd. 1.2 Features Small overall dimension ( 13.5 * 20 * 3.0 mm ) Based on JIELI chip set AC6956C Compliant with Bluetooth V5.3+BR+EDR+BLE specification 32-bit DSP supports hardware Float Point Unit(FPU) Up to 240MHz programmable processor SBC, AAC Audio decodes supported for BT audio Supports MP2, MP3, WMA, APE, FLAC,AAC, MP4, M4A, WAV, AIF, AIFC audio decoding One analog MIC amplifier, build-in MIC bias generator Supports two PDM digital MIC inputs Meet class1 class2 and class3 transmitting power requirement Support GFSK and /4 DQPSK all paket types Fast AGC for enhanced dynamic range Supports a2dp\avctp\avdtp\avrcp\hfp\spp\smp\att\gap\gatt\rfcomm\sdp\l2cap profile One full speed USB 2.0 OTG controller Three full-duplex basic UART, UART0 and UART1 supports DMA mode Low voltage LDO for internal digital and analog circuit supply Some features are optional for customization on demand. JIASHI Communication Co.,Ltd 5 Proprietary and Confidential JIASHI Communication Co.,Ltd. 1.3 Application Bluetooth Stereo Sound Box Bluetooth Mono Sound Box Bluetooth TWS Sound Box Massage chair Electric bicycle Golf cart Running Machine Eye massage instrument Helmet Lamp/Lighting JIASHI Communication Co.,Ltd 6 Proprietary and Confidential JIASHI Communication Co.,Ltd. 2. GENERAL SPECIFICATION Bluetooth Specification Chip Set Module ID BT Standard AC6956C JS-BTM657 Bluetooth V5.3 specification RF TX Output Power

-6~6dBm (typical) RX Sensitivity

-88dBm (typical) Frequency Band 2.402GHz~2.480GHz ISM Band Modulation Type GFSK,/4 DQPSK,8DPSK Channel No. 79(for Classic),40(for BLE) Baseband Crystal OSC 24MHz Hopping 1600hops/sec, 1MHz channel space RF Input Impedance 50 ohms Environmental RoHS Compliant JIASHI Communication Co.,Ltd 7 Proprietary and Confidential JIASHI Communication Co.,Ltd. 3. PHYSICAL CHARACTERISTIC JIASHI Communication Co.,Ltd 8 Proprietary and Confidential

: 0.6mm JIASHI Communication Co.,Ltd. JIASHI Communication Co.,Ltd 9 Proprietary and Confidential JIASHI Communication Co.,Ltd. 3.1 Pin Description Pin#

Pin Name Pad Type Description 1 2 3 4 5 6 7 8 9 10 11 GND Ground Ground PC5 GPIO PC4 GPIO PC3 GPIO PC2 GPIO USB_DM USB_DP USB Negative Data

(pull down) USB Negative Data

(pull down) PA10 GPIO PA9 GPIO PA1 GPIO SD1CLKASD1 Clock(A);

SPI1DOBSPI1 Data Out(B);

UART2RXDUart2 Data In(D);

IIC_SDA_BIIC SDA(B);

ADC13ADC Input Channel 13;

PWMCH5LMotor PWM Channel5(L) SD1CMDASD1 Command(A);

SPI1CLKBSPI1 Clock(B);

UART2TXDUart2 Data Out(D);

IIC_SCL_BIIC SCL(B); ADC10ADC Input Channel 10;

PWMCH5HMotor PWM Channel5(H) SD1DAT0ASD1 Data0(A);

SPI1DIBSPI1 Data In(B);

SD1DAT1ASD1 Data1(A); ALNK1_DAT0 Audio Link Data0;

Touch12Touch Input Channel 12;

FPIN5Motor Auto-Stop Protective Pin5 UART1RXDUart1 Data In(D);

IIC_SDA_AIIC SDA(A);

UART1TXDUart1 Data Out(D);

IIC_SCL_AIIC SCL(A);

ADC12ADC Input Channel 12;

SD0CLKASD0 Clock(A);

ALNK0_LRCKBAudio Link Word Select(B);

ADC3ADC Input Channel 3; SPDIF_IN_B Sony/Philips Digital Interface Input(B) TMR1Timer1 Clock Input;

Touch9Touch Input Channel 9;

UART2RXBUart2 Data In(B);

PWMCH4LMotor PWM Channel4(L) SD0CMASD0 Command(A);

ALNK0_SCLKBAudio Link Serial Clock(B);

SPDIF_IN_ASony/Philips Digital Interface Input(A) Touch8Touch Input Channel 8;

UART2TXBUart2 Data Out(B);

PWMCH4HMotor PWM Channel4(H) AMUX0RAnalog Channel0 Right;

Touch1Touch Input Channel 1;

ADC0ADC Input Channel 0;

UART1RXCUart1 Data In(C);

PWMCH0LMotor PWM Channel0(L) PA0 GPIO AMUX0LAnalog Channel0 Left;

JIASHI Communication Co.,Ltd 10 Proprietary and Confidential JIASHI Communication Co.,Ltd. Touch0Touch Input Channel 0;

CLKOUT0 UART1TXCUart1 Data Out(C);

PWMCH0HMotor PWM Channel0(H) GND Ground Ground MIC_BIAS GPIO MIC_BIASMicrophone Bias Output MIC Analog MICMIC Input Channel;

VDDIO Supply AGND Ground DACL DACR

IO Power 3.3v Analog Ground DAC Left Channel DAC Right Channel AGND Ground Analog Ground PB9 GPIO PB11 GPIO PB10 GPIO AMUX2LAnalog Channel2 Left;

SPI2CLKASPI2 Clk(A);

CAP0Timer0 Capture;

UART2TXCUart2 Data Out(C);

PWMCH3HMotor PWM Channel3(H) SDPG:SDC Power Gate;

SPDIF_OUTSony/Philips Digital Interface Out AMUX2RAnalog Channel2 Right;

SPI2DOASPI2 Data Out(A);

ADC9ADC Input Channel 9;

UART2RXCUart2 Data In(C);

PWMCH3LMotor PWM Channel3(L) GND Ground Ground FM_ANTIN

FM Single Input GND Ground Ground PB8 GPIO PB5 GPIO

(High Voltage Resistance) AMUX1RAnalog Channel1 Right;

SPI2_DIASPI2 Data In(A);

ADC8ADC Input Channel 8;

CLKOUT1Clk Out1;

PWM3Timer3 PWM Output;

CAP1Timer1 Capture;

UART0TXCUart0 Data Out(C);

UART0RXCUart0 Data In(C);

GND Ground Ground VBAT Supply Power Supply BT_AVDD Supply BT Power 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 JIASHI Communication Co.,Ltd 11 Proprietary and Confidential JIASHI Communication Co.,Ltd. PB1 PB0 GPIO

(pull up) GPIO

(High Voltage Resistance) Long Press Reset SPI1DOASPI1 Data Out(A);

ADC5ADC Input Channel 5;

TMR2Timer2 Clock Input;

UART1RXAUart1 Data In(A);

SPI1CLKASPI1 Clock(A);

UART1TXAUart1 Data Out(A);

PWMCH1HMotor PWM Channel1(H) GND Ground Ground 31 32 33 JIASHI Communication Co.,Ltd 12 Proprietary and Confidential JIASHI Communication Co.,Ltd. 4.ELECTRICAL CHARACTERISTIC 4.1 Absolute maximum ratings Symbol Description Tamb Tstg VBAT LDO_IN V3.3IO Ambient Temperature Storage temperature Supply Voltage Charger Voltage Min

-20

-65 2.2 4.5 Max

+70

+150 5.5 5.5 Unit V V V 3.3V IO Input Voltage

-0.3 VDDIO+0.3 4.2 Battery Charge Symbol Description LDO_IN Charge Input Voltage VCharge Charge Voltage ICharge Charge Current ITrikl Trickle Charge Current Min 4.5 4.15 20 20 4.3 DAC Characteristics Parameter Frequency Response THD+N S/N Crosstalk Output Swing Dynamic Range Min 20 _ _ _ Typ _

-75 95

-90 1 90 DAC Output Power 11 Typ Max Unit Test Conditions 5 4.2 5.5 4.25 320 45 70 V mA mA Charge current at fast charge mode VBAT<VTrikl Max 20K _ _ _ _ Unit Test Conditions V dB dB dB Vms dB mW 1KHz/0dB 10Kohm loading With A-Weighted Filter 1KHz/-60dB 10Kohm loading With A-Weighted Filter 32ohm loading JIASHI Communication Co.,Ltd 13 Proprietary and Confidential JIASHI Communication Co.,Ltd. 4.4 ADC Characteristics Parameter Min Typ Max Unit Test Conditions Dynamic Range S/N THD+N Crosstalk 80 90

-70

-80 dB dB dB dB 91 _ _ _ _ _ 1KHz/-60dB 1KHz/-60dB 1KHz/-60dB 1KHz/-60dB 4.5 RF characteristics Receiver Average Bluetoo th Spec Transmitter Average Sensitivity at0.1 BER 2402MHz 2441MHz 2480MHz

-88

-88

-88

<=-70 Output Power 2402MHz 2441MHz 2480MHz 2.5 2.5 2.5 Bluetooth Spec Unit dBm

-6~+4 dBm dBm JIASHI Communication Co.,Ltd 14 Proprietary and Confidential JIASHI Communication Co.,Ltd. 5. REFLOW PROFILE Reflow number of times: 2times JIASHI Communication Co.,Ltd 15 Proprietary and Confidential JIASHI Communication Co.,Ltd. 6. PACKAGING INFORMATION 1. BLUETOOTH Module: JS-BTM657 7.FCC regulatory compliance statement 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. Warning: changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. List of applicable FCC rules:

47 CFR Part 15, Subpart C 15.203 47 CFR Part 15, Subpart C 15.205 47 CFR Part 15, Subpart C 15.207 47 CFR Part 15, Subpart C 15.209 47 CFR Part 15, Subpart C 15.247 47 CFR Part 2.1091 This module can be used in IOT devices, the input voltage to the module is nominally 3.3V. Limited module procedures:This module is not a limited module. Trace antenna designs:The antenna is not a trace antenna. RF exposure considerations This Module complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Antennas If you desire to increase antenna gain and either change antenna type or use same antenna type certified, a Class II permissive change application is required to be filed by us, or you (host manufacturer) can take responsibility through the change in FCC ID (new application) procedure followed by a Class II permissive change application. Label and compliance information Please notice that if the FCC identification number is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module. This exterior label can use wording such as the following: Contains FCC ID: PXU-BT-A1 any similar wording that expresses the same meaning may be used. 15.19 Labelling requirements shall be complied on end user device. Labelling rules for special device, please refer to 2.925, 15.19 (a)(5) and relevant KDB publications. For E-label, please refer to 2.935. Information on test modes and additional testing requirements The OEM integrator is responsible for ensuring that the end-user has no manual instruction to remove or install module. The module is limited to installation in mobile application, a separate approval is required for all other operating configurations, including portable configurations with respect to 2.1093 and JIASHI Communication Co.,Ltd 16 Proprietary and Confidential difference antenna configurations Test software access to different test modes: fcc_assist_1.0.2.2 Testing item, Frequencies, Transmit Power, Modulation Type can be selected on the test script instructions. FCC other Parts, Part 15B Compliance Requirements for Host product manufacturer This modular transmitter is only FCC authorized for the specific rule parts listed on our grant, host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. Host manufacturer in any case shall ensure host product which is installed and operating with the module is in compliant with Part 15B requirements. For Class B 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. JIASHI Communication Co.,Ltd 17 Proprietary and Confidential

Shenzhen Breo Technology Co.,Ltd To:

Federal Communications Commission Office of Engineering and Technology Laboratory Division 7435 Oakland Mills Rd. Columbia MD 21046 From: Shenzhen Breo Technology Co.,Ltd Regarding: Confidentiality Request regarding application for FCC ID: PXU-BT-A1 LONG TERM CONFIDENTIALITY Pursuant to 47 CFR Section 0.459 and 0.457 of the commissions rules, the applicant hereby request confidential treatment of the documents listed below, associated with the certification application referenced above. Schematic(s) Block Diagrams Operational Descriptions The documents above contain proprietary information not released to the public. Public disclosure of this information may prove harmful to the business of the applicant. SHORT TERM CONFIDENTIALITYRemark045,90180 Additionally, the applicant requests the following documents be held confidential until the device is marketed or 90 days from the grant date, whichever is less. If the device is marketed within 90 days of the Grant Date, the applicant will notify the TCB per FCC KDB 726920 D01 Confidentiality Request Procedures. External Photos Internal Photos Test Setup Photos User manual(s) Sincerely, Print Name: Harvey zhou Title: Engineer Signature:

On behalf of Company: Shenzhen Breo Technology Co.,Ltd Telephone: +86-755-82073336 E-mail: zhouy@breo.com

SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Declaration Applicant Legal Business Name Shenzhen Breo Technology Co.,Ltd Address Grantee Code FCC ID Authorized Contact Name Contact Email Contact Phone 19/F, Hisense Southern Building No.1777, Chuangye road, NanShan District Shenzhen City, Guangdong Province 518054 China PXU PXU-BT-A1 Harvey zhou zhouy@breo.com

+86-755-82073336 I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare;

a) b) c) d) e) in accordance with 47CFR2.911(d), all of the statements herein and the exhibits attached hereto are true and correct to the best of my knowledge and belief. in accepting a Grant of Equipment Authorization issued by a TCB, under the authority of the FCC, as a result of the representations made in this application, the Applicant is responsible for:

(1)

(2)

(3) labeling the equipment with the exact FCC ID as specified in this application, compliance statement labeling pursuant to the applicable rules, compliance of the equipment with the applicable technical rules, if the Applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCCs technical requirements. in accordance with 47 CFR 2.909 and KDB394321, the Applicant has read, understood and agrees to accept that they are the responsible party and agree to abide by their responsibilities as specified under 47 CFR 2.909 and KDB394321. in accordance with ISO 17065, FCC KDB641163, FCC KDB610077, KDB394321 and RSP-100, the Applicant has read, understood, accepts and agrees to abide by the post market surveillance requirements.

(1)

(2)

(3) the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. the Applicant shall make provisions to always have a production sample available upon request by SGS, FCC and/or ISED. the Applicant shall, upon request by SGS, at the Applicants expense, provide a production sample of the requested product to SGS, FCC and/or ISED as instructed. The sample shall include all support devices, cables, software, accessories or other hardware or software required for evaluation, review, certification and audit surveillance of products certified by SGS. f) g) neither the Applicant nor any party to the application is 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 because of a conviction for possession or distribution of a controlled substance. See 47CFR 1.2002(b) for the definition of a party for these purposes. the Applicant has read, understood, accepts and agrees to abide by the SGS North America, Inc.(TCB) terms and conditions. Link to CFRs: https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 Link to KDBs: https://apps.fcc.gov/oetcf/kdb/index.cfm Link to RSP-100: https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html Link to the Covered List: Covered List

[ Shenzhen Breo Technology Co.,Ltd ] (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.

[ Shenzhen Breo Technology Co.,Ltd ] (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, as an entity producing covered equipment. Applicant Signature:

Print Name:

Title:

Harvey zhou Engineer Date: 2023-08-30

*NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database QSF27-14-04 Rev 1.0 Rev. Feb 6, 2023 Page 1 of 1 Original Issue: Jan. 4, 2021

Cover Letter-Modular Approval FCC ID: PXU-EM005 Date: 2023-08-30 Gentlemen:

Theres a Bluetooth Module that would like to have your authorization as a modular approval. The specific product as below, Bluetooth Module with its designed features and specified description, meets special requirements for Full modular approval on FCC KDB996369 by cross-reference list below. Company Model Name Model Number FCC ID Shenzhen Breo Technology Co.,Ltd Bluetooth Module BREO-BT-A1 PXU-BT-A1 Requirement of FCC KDB996369 ComplyY/N 1. The modular transmitter must have its own RF Y shielding. The EUT provides the RF shielding. See EUT 2. The modular transmitter must have buffered photo. Y modulation/data inputs (if such inputs are provided) to The EUT has its buffered modulation. Please ensure that the module will comply with Part 15 see the Schematic Diagram. requirements under conditions of excessive data rates or over-modulation. 3. The modular transmitter must have its own Y power supply regulation. The EUT has its own power supply regulation, please see the Schematic Diagram. 4. The modular transmitter must comply with the antenna Y and transmission system requirements of Sections The EUT meets the FCC antenna 15.203, 15.204(b) and 15.204(c). The antenna must requirements; the antenna permanently either be permanently attached or employ a unique attached to the module and photo of antenna antenna coupler (at all connections between the are shown in the test report. module and the antenna, including the cable). The professional installation provision of Section 15.203 is not applicable to modules but can apply to limited modular approvals under paragraph (b) of this section. 5. The modular transmitter must be tested in a stand alone configuration, i.e., the module must not be Y The EUT was tested with a test board, Please inside another device during testing. see test report and setup photo 6. The modular transmitter must be labeled with its own Y FCC ID number, and, if the FCC ID is not visible when Please see exhibition label sample for the the module is installed inside another device, then the FCC ID of this module. And also in the outside of the device into which the module is installed exhibition Users manual, there are instructions must also display a label referring to the enclosed give to the OEM on how to label the end module. This exterior label can use wording such as product. the following: Contains Transmitter Module FCC ID:

XXXXXXXXX or Contains FCC ID: XXXXXXXXX Any similar wording that expresses the same meaning may be used. The Grantee may either provide such a label, an example of which must be included in the application for equipment authorization, or, must provide adequate instructions along with the module which explain this requirement. In the latter case, a copy of these instructions must be included in the application for equipment authorization. 7. The modular transmitter must comply with any Y specific rule or operating requirements The EUT is compliant with all applicable FCC applicable to the transmitter and the manufacturer must rules. Details instructions for maintaining provide adequate instructions along compliance are give in the User Manual. with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. 8. The modular transmitter must comply with any Y applicable RF exposure requirements. For example, The EUT complies with RF exposure FCC Rules in Sections 2.1091, 2.1093 and specific requirement. sections of Part 15, including 15.319(i), 15.407(f), 15.253(f) and 15.255(g), require that Unlicensed PCS, UNII and millimeter wave devices perform routine environmental evaluation for RF Exposure to demonstrate compliance. In additio n, spread spectrum transmitters operating under Section 15.247 are required to address RF Exposure compliance in accordance with Section 15.247(b)(4). Thank you. Sincerely, Print Name: Harvey zhou Title:Engineer Signature:

On behalf of Company: Shenzhen Breo Technology Co.,Ltd Telephone: +86-755-82073336 E-mail: zhouy@breo.com

Shenzhen Breo Technology Co.,Ltd Date: 2023-08-30 TO:

Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Regarding: FCC ID: PXU-BT-A1 To whom it may concern:

We, the undersigned, hereby authorize SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch to act on our behalf in all manners relating to application for equipment authorization with respect to the FCC ID above, including signing of all documents relating to these matters. Any and all acts carried out by the agent on our behalf shall have the same effect as acts of our own. 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. 853(a). Where our agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by SGS North America, Inc., still resides with Shenzhen Breo Technology Co.,Ltd This authorization is valid until further written notice from the applicant. Sincerely, Print Name: Harvey zhou Title: Engineer Signature:

On behalf of Company: Shenzhen Breo Technology Co.,Ltd Telephone: +86-755-82073336 E-mail: zhouy@breo.com

UNITED STATES DESIGNATED AGENT LETTER Date: 2023-08-30 TO:

Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Grantee Code:

Contact Name:

Address:

Applicant Company Name: Shenzhen Breo Technology Co.,Ltd PXU Harvey zhou 19/F, Hisense Southern Building No.1777, Chuangye road, NanShan District Shenzhen City, Guangdong Province 518054 China U.S. designated agent Company Name: United Consulting Technology FRN Contact Name:

Address:

Services Co., Ltd. 0033495714 David Wu 17800 CASTLETON ST STE 665 CITY OF INDUSTRY CA 91748 United States Telephone:

+86-755-82073336 Telephone:

(626) 217-4022 Email:

zhouy@breo.com Email:

David@uc-ts.com Applicable Equipment: FCC ID: PXU-BT-A1 ATTN: Director of Certification:

We, Shenzhen Breo Technology Co.,Ltd and United Consulting Technology Services Co., Ltd. understand and acknowledge the applicants consent and the designated agents 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 applicants 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 U.S. designated agent Name (Printed): Harvey zhou Name (Printed): David Wu Title: Engineer Signature:

Title: General Manager Signature: