2AVFC-MC-1Wireless USB Interface

Connectiontotheheadunitinthe car ❶InserttheMC-1boxintotheUSBportofthecar TheMC-1boxshouldbeconnectedwiththe USBinterfaceoftheheadunitinthecar,the headunithasthewiredCarplayandAndroid Autofunction. ❷ClickonthewiredCarPlayfunctioninthedisplayscreen oftheheadunit ClickthewiredCarPlayfunctionintheheadunit, andidentifytheMC-1boxnormally ❸Mobilephonepairing AfteridentifyingtheMC-1box,followingthehints onthedisplayscreenoftheheadunittochoose therepairedphone. Reminder: 1.Iftheheadunitfailstodisplaythispage,itmaybea phone’scompatibilityproblem,pleasecontactusfora solution. 2.Thereare4pcsdifferentUSBconnectors,pleasefirst choosethecorrectone Specialinstructionforthephonepairing BeforepairingtheMC-1boxwithyourphoneviaBT,pleasedeletetheoriginal pairedphonetoavoidinterference. TheBluethoothnameis“carplaybox+4randomnumbers”,pleasesearchthis nametopairandfollowingthehintsdisplayedonyouriphone. TheBluethoothnameis“carplaybox”,pleasesearchthisnametopairand followingthehintsdisplayedonyouriphone. Search“carplaybox”--->click“Pair”--->click“allow”--->usecarplay ForthewirelessAndroidAuto,ithasthesameoperationasCarplay! FCC Warnning: 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 againstharmful interference in a residential installation. This equipment generates, uses and can radiateradio frequency energy and, if not installed and used in accordance with the instructions, maycause harmful interference to radio communications. However, there is no guarantee thatinterference will not occur in a particular installation. If this equipment does cause harmfulinterference to radio or television reception, which can be determined by turning the equipmentoff and on, the user is encouraged to try to correct the interference by one or more of thefollowing 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. Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this equipment. 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. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body.

Dongguan Flysonic Electronics Co., Ltd Nengda Road #5, Tianliao Industrial Area, Shipai Town, Dongugan City, Guangdong Province, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2023/12/06 U.S. Agent Designation Dongguan Flysonic Electronics Co., Ltd acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: 2AVFC-MC-1): Name and company of U.S. agent: SELLER HELPER INC. Physical U.S. address of agent: 1312 17th Street # 1298, Denver, CO 80202, United States FRN of U.S. agent: 0033406737 Email address of U.S. agent: [email protected] SELLER HELPER INC. acknowledges their obligation to accept service of process on behalf of Dongguan Flysonic Electronics Co., Ltd Dongguan Flysonic Electronics Co., Ltd with the FRN [0029059201] accepts 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. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Sincerely, Signature Brella Xiong Manager Dongguan Flysonic Electronics Co., Ltd Signature Fairy Lee Manager SELLER HELPER INC. 48_[mo del] US_Agent_2.911(d)(7) - U, V0 5

Sincerely, Name/Title： Brella Xiong/manager Company: Dongguan Flysonic Electronics Co., Ltd Address: Nengda Road #5, Tianliao Industrial Area, Shipai Town, Dongugan City, Guangdong Shenzhen China Phone: 18080639419 Fax: 0769-83863889 E-Mail: [email protected]

FCC ID: 2AVFC-MC-1 External Photos of the EUT Photo 1 Photo 2 Photo 3 FCC ID: 2AVFC-MC-1 Photo 4 Photo 5 Photo 6 FCC ID: 2AVFC-MC-1 Photo 7 Photo 8

Label and Location Size: L: 2.0cm*W:1.0cm Label and Location FCC ID : 2AVFC-MC-1

FCC ID: 2AVFC-MC-1 Internal Photos of the EUT Photo 1 Photo 2 Photo 3 BT PCB Antenna 2.4G WIFI /5G WIFI PCB Antenna 1 2.4G WIFI /5G WIFI PCB Antenna 2 FCC ID: 2AVFC-MC-1 Photo 4 Photo 5

RF Exposure evaluation FCC ID: 2AVFC-MC-1 Exposure category: General population/uncontrolled environment EUT Type: Production Unit Device Type: Mobile Device 1. Reference According to §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 §1.1310 and §2.1091 RF exposure is calculated. KDB447498 D01: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies 2. Limit Limits for Maximum Permissible Exposure (MPE)/Controlled Exposure Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density (mW/cm²) Averaging Time (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 3.0 – 30 30 – 300 300 – 1500 1500 – 100,000 614 1842/f 61.4 / / 1.63 4.89/f 0.163 / / (100) * (900/f 2 )* 1.0 f/300 5 6 6 6 6 6 Limits for Maximum Permissible Exposure (MPE)/Uncontrolled Exposure Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density (mW/cm²) Averaging Time (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 3.0 – 30 30 – 300 300 – 1500 1500 – 100,000 614 824/f 27.5 / / 1.63 2.19/f 0.073 / / (100) * (180/f 2 )* 0.2 f/1500 1.0 30 30 30 30 30 F=frequency in MHz *=Plane-wave equivalent power density 3. MPE Calculation Method Predication of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 S=PG/4πR² Where: S=power density P=power input to antenna G=power gain of the antenna in the direction of interest relative to an isotropic radiator R=distance to the center of radiation of the antenna 4. Antenna Information L4K1 can only use antennas certificated as follows provided by manufacturer; Antenna No. Model No. of antenna: Type of antenna: Gain of the antenna (Max.) Frequency range: BT / PCB antenna -0.58 dBi for 2400-2500MHz; 2.4GWIFI / PCB antenna -0.58 dBi for 2400-2500MHz for ANT 1&2 5GWIFI / PCB antenna -0.58 dBi for 5000-6000MHz for ANT 1&2 5. Manufacturing Tolerance BT Mode Max. Peak Conducted Output Power (dBm) Max. tune-up BT -1.13 -1.0±1 BLE 0.72 1.0±1 2.4GWIFI Mode Max. Average Conducted Output Power (dBm) Max. tune-up Antenna0 Antenna1 Antenna0 Antenna1 2.4GWIFI 15.24 15.66 15.0±1 15.0±1 5GWIFI Mode Max. Average Conducted Output Power (dBm) Max. tune-up Antenna0 Antenna1 Antenna0 Antenna1 5.2GWIFI 12.79 13.95 13±1 13±1 5.8GAWIFI 13.75 13.78 13±1 13±1 6. Standalone MPE Result As declared by the Applicant, the EUT is a wireless device used in a fix application, at least 20 cm from any body part of the user or nearby persons; from the maximum EUT RF output power, the minimum separation distance, r =20cm, as well as the gain of the used antenna is -0.58dBi, the RF power density can be obtained. Modulation Type Output power Antenna Gain (dBi) Antenna Gain (linear) MPE (mW/cm 2 ) MPE Limits (mW/cm 2 ) dBm mW BT ANT0 0.0 1.0000 -0.58 0.8750 0.0002 1.0000 BLE ANT0 2.0 1.5849 -0.58 0.8750 0.0003 1.0000 2.4GWIFI ANT1 16.0 39.8107 -0.58 0.8750 0.0069 1.0000 5.2GWIFI ANT1 14.0 25.1189 -0.58 0.8750 0.0044 1.0000 5.8GWIFI ANT1 14.0 25.1189 -0.58 0.8750 0.0044 1.0000 Modulation Type Output power Antenna Gain (dBi) Antenna Gain (linear) MPE (mW/cm 2 ) MPE Limits (mW/cm 2 ) dBm mW 2.4GWIFI ANT2 16.0 39.8107 -0.58 0.8750 0.0069 1.0000 5.2GWIFI ANT2 14.0 25.1189 -0.58 0.8750 0.0044 1.0000 5.8GWIFI ANT2 14.0 25.1189 -0.58 0.8750 0.0044 1.0000 Remark: 1. Output power (Peak) including turn-up tolerance; 2. MPE evaluate distance is 20cm from user manual provide by manufacturer. 7. simultaneous MPE Result 2.4GWIFI ANT1 MPE (Ratio) 2.4GWIFI ANT2 MPE (Ratio) BLE MPE (Ratio) simultaneous MPE (Ratio) MPE Limits (Ratio) 0.0069 0.0069 0.0003 0.0141 1.0000 8. Conclusion The measurement results comply with the FCC Limit per 47 CFR 2.1091 for the uncontrolled RF Exposure of mobile device. ----------------THE END OF REPORT---------------

Inverted F Antenna Specification Summary ITEM ANT SPEC Model Name B T2.4G ANT Horizontal Vertical 2400MHz 2450MHz2500MHz2400MHz2450MHz 2500MHz Center Frequency -1.26 -0.76 -0.58 -5.25 -2.46 -1.86 MAX. Gain -0.58dBi Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Length 38.20mm Manufacture SHENZHEN MASNO TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dBi) Frequency (MHz) Max Min Avg 2400 -1.26174 -30.0801 -7.18716 2450 -0.765802 -36.5604 -7.48023 2500 -0.585582 -22.0315 -6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dBi) Frequency (MHz) Max Min Avg 2400 -5.2537 -22.1424 -12.4294 2450 -2.4652 -24.5837 -10.4702 2500 -1.86120 -29.5214 -9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn FCC PART 15 SUBPART C TEST REPORT FCC PART 15.247 Report Reference No. ..................... : FCC ID............................................. : CTA23110600802 2AVFC-MC-1 Compiled by ( position+printed name+signature) . : File administrators Zoey Cao Supervised by ( position+printed name+signature) . : Project Engineer Amy Wen Approved by ( position+printed name+signature) . : RF Manager Eric Wang Date of issue .................................... : Nov. 14, 2023 Testing Laboratory Name .............. : Shenzhen CTA Testing Technology Co., Ltd. Address ............................................ : Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao‘an District, Shenzhen, China Applicant’s name ............................ : Dongguan Flysonic Electronics Co., Ltd Address ............................................ : Nengda Road #5, Tianliao Industrial Area, Shipai Town, Dongugan City, Guangdong Province, China Test specification ........................... : Standard ........................................... : FCC Part 15.247 Shenzhen CTA Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen CTA Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTA Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description ..................... : Wireless USB Interface Trade Mark ....................................... : Power Acoustik / Soundstream Manufacturer .................................... : Dongguan Flysonic Electronics Co., Ltd Model/Type reference ...................... : MC-1 Listed Models .................................. : SRMC-10 Modulation ....................................... : GFSK, Π/4DQPSK, 8DPSK Frequency ......................................... From 2402MHz to 2480MHz Rating ............................................... : DC 5.0V From PC Result ............................................... : PASS Report No.: CTA23110600802 Page 2 of 45 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn T E S T R E P O R T Equipment under Test : Wireless USB Interface Model /Type : MC-1 Listed Models : SRMC-10 Applicant : Dongguan Flysonic Electronics Co., Ltd Address : Nengda Road #5, Tianliao Industrial Area, Shipai Town, Dongugan City, Guangdong Province, China Manufacturer : Dongguan Flysonic Electronics Co., Ltd Address : Nengda Road #5, Tianliao Industrial Area, Shipai Town, Dongugan City, Guangdong Province, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: CTA23110600802 Page 3 of 45 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn Contents 1 T E S T S T A N D A R D S ................................................................. 4 2 S U M M A R Y ............................................................................ 5 2.1 General Remarks 5 2.2 Product Description 5 2.3 Equipment Under Test 5 2.4 Short description of the Equipment under Test (EUT) 5 2.5 EUT operation mode 6 2.6 Block Diagram of Test Setup 6 2.7 Related Submittal(s) / Grant (s) 6 2.8 Modifications 6 3 T E S T E N V I R O N M E N T .............................................................. 7 3.1 Address of the test laboratory 7 3.2 Test Facility 7 3.3 Environmental conditions 7 3.4 Summary of measurement results 8 3.5 Statement of the measurement uncertainty 8 3.6 Equipments Used during the Test 9 4 T E S T C O N D I T I O N S A N D R E S U L T S ........................................... 11 4.1 AC Power Conducted Emission 11 4.2 Radiated Emission 14 4.3 Maximum Peak Output Power 20 4.4 20dB Bandwidth 21 4.5 Frequency Separation 25 4.6 Number of hopping frequency 27 4.7 Time of Occupancy (Dwell Time) 29 4.8 Out-of-band Emissions 33 4.9 Pseudorandom Frequency Hopping Sequence 42 4.10 Antenna Requirement 43 5 T E S T S E T U P P H O T O S O F T H E E U T ......................................... 44 6 P H O T O S O F T H E E U T ........................................................... 45 Report No.: CTA23110600802 Page 4 of 45 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn 1 T E S T S T A N D A R D S The tests were performed according to following standards: FCC Rules Part 15.247: Frequency Hopping, Direct Spread Spectrum and Hybrid Systems that are in operation within the bands of 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz. ANSI C63.10-2013: American National Standard for Testing Unlicensed Wireless Devices Report No.: CTA23110600802 Page 5 of 45 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn 2 S U M M A R Y 2.1 Ge…

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Report No.: CTA23110600802 Page 35 of 45 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn GFSK(CH78) π/4DQPSK (CH00) reference reference 30MHz-1G 30MHz-1G 1G-25G 1G-25G Report No.: CTA23110600802 Page 36 of 45 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn π/4DQPSK (CH39) π/4DQPSK (CH78) reference reference 30MHz-1G 30MHz-1G 1G-25G 1G-25G Report No.: CTA23110600802 Page 37 of 45 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn 8DPSK (CH00) 8DPSK (CH39) reference reference 30MHz-1G 30MHz-1G 1G-25G 1G-25G Report No.: CTA23110600802 Page 38 of 45 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn 8DPSK (CH78) reference 30MHz-1G 3G-25G Report No.: CTA23110600802 Page 39 of 45 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn Band-edge Measurements for RF Conducted Emissions: GFSK Left Band edge hoping off Right Band edge hoping off Left Band edge hoping on Right Band edge hoping on Report No.: CTA23110600802 Page 40 of 45 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn π/4DQPSK Left Band edge hoping off Right Band edge hoping off Left Band edge hoping on Right Band edge hoping on Report No.: CTA23110600802 Page 41 of 45 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn 8DPSK Left Band edge hoping off Right Band edge hoping off Left Band edge hoping on Right Band edge hoping on Report No.: CTA23110600802 Page 42 of 45 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn 4.9 Pseudorandom Frequency Hopping Sequence TEST APPLICABLE For 47 CFR Part 15C section 15.247 (a) (1) requirement: Frequency hopping systems shall have hopping channel carrier frequencies separated by a minimum of 25 kHz or the 20 dB bandwidth of the hop-ping channel, whichever is greater. Alternatively, frequency hopping systems operating in the 2400–2483.5 MHz band may have hopping channel carrier frequencies that are separated by 25 kHz or two-thirds of the 20 dB bandwidth of the hopping channel, whichever is greater, provided the systems operate with an output power no greater than 125 mW. The system shall hop to channel frequencies that are selected at the system hopping rate from a pseudo randomly ordered list of hopping frequencies. Each frequency must be used equally on the average by each transmitter. The system receivers shall have input bandwidths that match the hop-ping channel bandwidths of their corresponding transmitters and shall shift frequencies in synchronization with the transmitted signals. EUT Pseudorandom Frequency Hopping Sequence Requirement The pseudorandom frequency hopping sequence may be generated in a nice-stage shift register whose 5 th and 9 th stage outputs are added in a modulo-two addition stage. And the result is fed back to the input of the first stage. The sequence begins with the first one of 9 consecutive ones, for example: the shift register is initialized with nine ones. ● Number of shift register stages:9 ● Length of pseudo-random sequence:29-1=511 bits ● Longest sequence of zeros:8(non-inverted signal) An example of pseudorandom frequency hopping sequence as follows: Each frequency used equally one the average by each transmitter. The system receiver have input bandwidths that match the hopping channel bandwidths of their corresponding transmitter and shift frequencies in synchronization with the transmitted signals. Report No.: CTA23110600802 Page 43 of 45 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn 4.10 Antenna Requirement Standard Applicable For intentional device, according to FCC 47 CFR Section 15.203, an intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device. And according to FCC 47 CFR Section 15.247 (c), if transmitting antennas of directional gain greater than 6dBi are used, the power shall be reduced by the amount in dB that the directional gain of the antenna exceeds 6dBi. Refer to statement below for compliance The manufacturer may design the unit so that the user can replace a broken antenna, but the use of a standard antenna jack or electrical connector is prohibited. Further, this requirement does not apply to intentional radiators that must be professionally installed. Antenna Connected Construction The maximum gain of antenna was -0.58 dBi. Remark:The antenna gain is provided by the customer , if the data provided by the customer is not accurate, Shenzhen CTA Testing Technology Co., Ltd. does not …

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FCC ID: 2AVFC-MC-1 Test Setup Photos of the EUT