2AJ5B-C78Bluetooth FM Transmitter for Car

C78 FCC Statement 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 in terference 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 th e separation between the equipment and receiver. -Connect t he equipment into an ou tlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. To assure continued compliance, any changes or modifications not expressly approved by the party. Responsible for compliance could void the user’s authority to operate this equipment. (Example- use only shielded interface cables when connecting to computer or peripheral devices). This equipment 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 in terference received, in cluding interference that may cause undesired operation. RF warning statement: The device has been evaluated to meet general RFexposure requirement. Thedevice can be used in portable exposure condition without restriction.

SAGE HUMAN ELECTRONICS INTERNATIONAL CO.,LTD. Add: 4F.,A Building,Rongli Industrial Park,No.2 Guiyuan Rd.Guihua Community,Guanlan Town,Longhua New Dist. Shenzhen, China Date: 2021/2/24 FCC ID: 2AJ5B-C78 Dear Sir/Madam, We, SAGE HUMAN ELECTRONICS INTERNATIONAL CO.,LTD. Hereby declares the following statement for Federal Communications Commission, PCB board, circuit, structure and internal of these model(s) are the same, Only model number is different for these model: Product name: Bluetooth FM Transmitter for Car Model no.: C78, C78Q, C78S, BH477A, BH477B, BH477C Sincerely, Name/Title： Fred Xiao/General Manager Company: SAGE HUMAN ELECTRONICS INTERNATIONAL CO.,LTD. Address: 4F.,A Building,Rongli Industrial Park,No.2 Guiyuan Rd.Guihua Community,Guanlan Town,Longhua New Dist. Shenzhen, China Phone: +86-755-28079392 Fax: +86-755-28079393 E-Mail: [email protected]

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date:<2021/2/24> Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products: FCC ID Model name 2AJ5B-C78 C78 For the product stated above, we request that the following information be held confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name/Title： Fred Xiao/General Manager Company: SAGE HUMAN ELECTRONICS INTERNATIONAL CO.,LTD. Address: 4F.,A Building,Rongli Industrial Park,No.2 Guiyuan Rd.Guihua Community,Guanlan Town,Longhua New Dist. Shenzhen, China Phone: +86-755-28079392 Fax: +86-755-28079393 E-Mail: [email protected]

SAGE HUMAN ELECTRONICS INTERNATIONAL CO.,LTD. 4F.,A Building,Rongli Industrial Park,No.2 Guiyuan Rd.Guihua Community,Guanlan Town,Longhua New Dist. Shenzhen, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2021/2/24 To whom it may concern: We, SAGE HUMAN ELECTRONICS INTERNATIONAL CO.,LTD. the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2AJ5B-C78 including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name/Title： Fred Xiao/General Manager Company: SAGE HUMAN ELECTRONICS INTERNATIONAL CO.,LTD. Address: 4F.,A Building,Rongli Industrial Park,No.2 Guiyuan Rd.Guihua Community,Guanlan Town,Longhua New Dist. Shenzhen, China Phone: +86-755-28079392 Fax: +86-755-28079393 E-Mail: [email protected]

FCC ID: 2AJ5B-C78 TB-RF-074-1.0 Appendix III EUT External Photographs Photo 1 Appearance of EUT Photo 2 Appearance of EUT FCC ID: 2AJ5B-C78 TB-RF-074-1.0 Photo 3 Appearance of EUT Photo 4 Appearance of EUT FCC ID: 2AJ5B-C78 TB-RF-074-1.0 Photo 5 Appearance of EUT Photo 6 Appearance of EUT

FCC ID: 2AJ5B-C78 TB-RF-074-1.0 AppendixIFCC ID Label Size for the label: 15mm X30mm AppendixIIFCC ID Label Location ID LOCATION Bluetooth FM Transmitter for Car FCC ID: 2AJ5B-C78 Model: C78

FCC ID: 2AJ5B-C78 TB-RF-074-1.0 Appendix IV EUT Internal Photographs Photo 7 Appearance of PCB Photo 8 Appearance of PCB FM Antenna FCC ID: 2AJ5B-C78 TB-RF-074-1.0 Photo 9 Appearance of PCB Photo 10 Appearance of PCB BT Ant.

Shenzhen Toby Technology Co., Ltd. Report No.: TB-MPE177638 Page: 1 of 3 TB-RF-074-1.0 1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China Tel: +86 75526509301 Fax: +86 75526509195 RF Exposure Evaluation FCC ID: 2AJ5B-C78 1. Client Information Applicant : SAGE HUMAN ELECTRONICS INTERNATIONAL CO.,LTD. Address : 4F.,A Building,Rongli Industrial Park,No.2 Guiyuan Rd.Guihua Community,Guanlan Town,Longhua New Dist. Shenzhen, China Manufacturer : SAGE HUMAN ELECTRONICS INTERNATIONAL CO.,LTD. Address : 4F.,A Building,Rongli Industrial Park,No.2 Guiyuan Rd.Guihua Community,Guanlan Town,Longhua New Dist. Shenzhen, China 2. General Description of EUT :EUT Name Bluetooth FM Transmitter for Car Models No.: C78, C78Q, C78S, BH477A, BH477B, BH477C Model Difference : All these models are identical in the same PCB, layout and electrical circuit, the only difference is appearance color. :Sample ID 20201118-14-5#& 20201118-14-6# Product Description : Bluetooth V5.0: 2402~2480 MHzOperation Frequency: -0.68dBi Chip AntennaAntenna Gain: :Power Rating Input: DC 12-24V USB Output: QC3.0(DC 5V 3A, 9V2A, 12V1.5A) Type-C Output: PD3.0(DC 5V 3A, 9V2A, 12V1.5A) Shared Output: DC 5V4.8A(MAX) Software Version : N/A Hardware Version : C78_2819-V1.0 Remark : The antenna gain provided by the applicant, the verified for the RF conduction test provided by TOBY test lab. Note: More test information about the EUT please refer the RF Test Report. Report No.: TB-MPE177638 Page: 2 of 3 TB-RF-074-1.0 SAR Test Exclusion Calculations 1. FCC: According to KDB 447498 D01 Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies v06. (1) Clause 4.3: General SAR test reduction and exclusion guidance Sub clause 4.31: Standalone SAR test exclusion considerations 1) The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6GHz at test separation distance≤5 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation, mm)]*[√f (GHz) ] ≤3.0 for 1-g SAR [(max. power of channel, including tune-up tolerance, mW)/(min. test separation, mm)]*[√f (GHz) ] ≤7.5.0 for 10-g SAR Report No.: TB-MPE177638 Page: 3 of 3 TB-RF-074-1.0 2. Calculation: Test separation: 5mm Bluetooth Mode (GFSK) Frequency (GHz) Conducted Power (dBm) Turn-up Power Tolerance (dB) Max power of tune up tolerance (dbm) Max power of tune up tolerance (mw) Calculation Value Threshol d Value 2.402 1.141 1±1 2 1.585 0.491 3.0 2.441 1.177 1±1 2 1.585 0.495 3.0 2.480 0.609 1±1 2 1.585 0.499 3.0 Test separation: 5mm Bluetooth Mode (π/4-DQPSK) Frequency (GHz) Conducted Power (dBm) Turn-up Power Tolerance (dB) Max power of tune up tolerance (dbm) Max power of tune up tolerance (mw) Calculation Value Threshol d Value 2.402 0.186 0±1 1.0 1.259 0.390 3.0 2.441 0.340 0±1 1.0 1.259 0.393 3.0 2.480 -0.196 0±1 1.0 1.259 0.315 3.0 Test separation: 5mm Bluetooth Mode (8-DPSK) Frequency (GHz) Conducted Power (dBm) Turn-up Power Tolerance (dB) Max power of tune up tolerance (dbm) Max power of tune up tolerance (mw) Calculation Value Threshol d Value 2.402 0.515 0±1 1.0 1.259 0.390 3.0 2.441 0.670 0±1 1.0 1.259 0.393 3.0 2.480 0.151 0±1 1.0 1.259 0.315 3.0 So the worst RF Exposure Evaluation is calculated as 0.499< limit 3.0. The measurement results comply with the FCC Limit per 47 CFR 2.1093 for the uncontrolled RF Exposure and SAR Exclusion Threshold per KDB 447498 v06. -----END OF REPORT-----

Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC177636 Page: 1 of 77 TB-RF-074-1.0 1/F.,Building 6, Rundongsheng Industrial Zone, Longzhu, Xixiang, Bao'an District, Shenzhen, Guangdong, China Tel: +86 75526509301 Fax: +86 75526509195 FCC Radio Test Report FCC ID: 2AJ5B-C78 Original Grant Report No. : TB-FCC177636 Applicant : SAGE HUMAN ELECTRONICS INTERNATIONAL CO.,LTD. Equipment Under Test (EUT) EUT Name : Bluetooth FM Transmitter for Car Model No. : C78 Series Model No. : C78Q, C78S, BH477A, BH477B, BH477C Brand Name : ---- Sample ID : 20201118-14-5#& 20201118-14-6# Receipt Date : 2020-12-04 Test Date : 2020-12-05 to 2021-02-22 Issue Date : 2021-02-23 Standards : FCC Part 15, Subpart C 15.247 Test Method : ANSI C63.10: 2013 Conclusions : PASS In the configuration tested, the EUT complied with the standards specified above, The EUT technically complies with the FCC requirements Test/Witness Engineer : Rebeca Engineer Supervisor : Ivan Su Engineer Manager : Ray Lai This report details the results of the testing carried out on one sample. The results contained in this test report do not relate to other samples of the same product. The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in the report. Report No.: TB-FCC177636 Page: 2 of 77 TB-RF-074-1.0 Contents CONTENTS ............................................................................................................................................. 2 1. GENERAL INFORMATION ABOUT EUT ............................................................................. 5 1.1 Client Information ................................................................................................................. 5 1.2 General Description of EUT (Equipment Under Test) ................................................... 5 1.3 Block Diagram Showing the Configuration of System Tested ...................................... 7 1.4 Description of Support Units .............................................................................................. 7 1.5 Description of Test Mode .................................................................................................... 8 1.6 Description of Test Software Setting ................................................................................ 9 1.7 Measurement Uncertainty .................................................................................................. 9 1.8 Test Facility ......................................................................................................................... 10 2. TEST SUMMARY ..................................................................................................................... 11 3. TEST SOFTWARE ................................................................................................................... 11 4. TEST EQUIPMENT .................................................................................................................. 12 5. CONDUCTED EMISSION TEST ........................................................................................... 13 5.1 Test Standard and Limit .................................................................................................... 13 5.2 Test Setup ........................................................................................................................... 13 5.3 Test Procedure ................................................................................................................... 14 5.4 Deviation From Test Standard ......................................................................................... 14 5.5 EUT Operating Mode ........................................................................................................ 14 5.6 Test Data ............................................................................................................................. 14 6. RADIATED EMISSION TEST ................................................................................................ 15 6.1 Test Standard and Limit .................................................................................................... 15 6.2 Test Setup ........................................................................................................................... 16 6.3 Test Procedure ................................................................................................................... 17 6.4 Deviation From Test Standard ......................................................................................... 17 6.4 EUT Operating Condition ................................................................................................. 17 6.5 Test Data ............................................................................................................................. 17 7. RESTRICTED BANDS REQUIREMENT ............................................................................. 18 7.1 Test Standard and Limit .................................................................................................... 18 7.2 Test Setup ........................................................................................................................... 18 7.3 Test Procedure ................................................................................................................... 19 7.4 Deviation From Test Standard ......................................................................................... 19 7.5 EUT Operating Condition ................................................................................................. 19 7.6 Test Data ............................................................................................................................. 19 8. NUMBER OF HOPPING CHANNEL .................................................................................... 20 8.1 Test Standard and Limit .............................…

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FCC ID: 2AJ5B-C78 TB-RF-074-1.0 Appendix V EUT Test Photographs 15C Test Setup Photo of Setup for Radiated Emission (Above 1 GHz) Photo of Setup for Radiated Emission (Below 1 GHz) -----END OF REPORT-----