2ADADFLXSMRTX5FM Transmitter

FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's 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 device and its antenna(s) must not be co-located or operating in conjunction with any other antenna or transmitter. 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. FCC RF Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific operating instructions for satisfying RF exposure compliance. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. The device has been evaluated to meet general RF exposure requirement. The device can beused in portable exposure condition without restriction.

SCS-F18: Project and Product Certification Representative Authorization Letter Page 1 of 3 Rev 5.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Project and Product Certification Representative Authorization Letter Reason for Amendment (current / obsolete) Revision History Approved Date From To Initial Release (obsolete) 1.0 1.0 Nov-14-2006 Revised wording (obsolete) 1.0 2.0 Sept–25-2007 Updated company template (obsolete) 2.0 3.0 Jan-31-2012 Updated letter information (obsolete) 3.0 4.0 May-23-2014 Added FCC ID field (current) 4.0 5.0 Sept 16 2014 SCS-F18: Project and Product Certification Representative Authorization Letter Page 2 of 3 Rev 5.0 Shenzhen YOHE Technology Co., Ltd. 2014/9/30 To: SIEMIC, INC. 775 Montague Expressway, Milpitas, CA 95035 USA Dear Sir/Madam, Re: Product Certification Representative Authorization Letter We, Shenzhen YOHE Technology Co., Ltd. hereby authorize SIEMIC, Inc. to act as a Certification Body for certifying for the following project(s): Product description: FM Transmitter model name: FLEXSMART-X5 FCC ID: 2ADADFLXSMRTX5 Sincerely, Client’s signature Client’s name / title : Baohe Liu / Manager Contact information / address: JunWeiXing Industry Park,TongFuYu Industrial Zone, ZhenMei Village, GuangMing District,Shenzhen,China

SCS-F19: Confidentiality Request Letter Page 1 of 2 Rev 3.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Confidentiality Request Letter Reason for Amendment (current / obsolete) Revision History Approved Date From To Initial Release (obsolete) 1.0 1.0 Nov-14-2006 Adding CFR 2.459 (obsolete) 1.0 2.0 August – 11 - 2008 Updated company template & Added text box (current) 2.0 3.0 Jan-31-2012 SCS-F19: Confidentiality Request Letter Page 2 of 2 Rev 3.0 Shenzhen YOHE Technology Co., Ltd. 2014-9-30 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Subject: Permanent Confidentiality Request for FCC ID: 2ADADFLXSMRTX5 We hereby request confidential treatment of information accompanying this application as outlined below: - Block Diagram - Schematics - Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 & 0.459 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Sincerely, Client’s signature Signature Client’s name / title : Baohe Liu / Manager Contact information / address: JunWeiXing Industry Park,TongFuYu Industrial Zone, ZhenMei Village, GuangMing District,Shenzhen,China

Shenzhen YOHE Technology Co., Ltd. JunWeiXing Industry Park, To n g F u Yu Industrial Zone, ZhenMei Village, GuangMing District, Shenzhen, China Date: 2014-9-29 FCC ID: 2ADADFLXSMRTX5 Subject: FM Function Declaration To Whom it may concern, This device is acting as slave and operating in the 88.1 – 107.9 MHz band. FM function is supported but not able to operate on non-US frequencies . 1> How does this device operate? This device operating frequency rang from 88.1 to 107.9MHz. Total 199 channels. Channel separation is 100KHz. 2> Provide information on the device and its antenna. The device is a low power communication device(FM Transmitter). The EUT use a integral antenna. 3> How is it installed? The transmitter is powered from 12V in car. It can be connected to the car power socket outlet only. 4> What test procedure was used? According to ANSI C63.10-2009 and FCC Part15.239 5> If tested in a car,how was it configured/tested? Not tested in a car ,it was tested in a chamber. 6> Was the turing rang properly verified? Yes, It is only allowed to tune between 88.1 to 107.9MHz 7> Was the bandwidth properly tested with maximum audio input? The test was performed with the maximum audio input. And play typical audio signal(music song). We have indicated the operating condition in the test report,see clause 2.2 8> Provide the test report Test Report Submitted.

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Photo 9 Photo 10 Photo 11 Photo 12 Photo 13 Photo 14 BT ANT FM ANT

FCC ID : 2ADADFLXSMRTX5 RF EXPOSURE EVALUATION METHOD SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. 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 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 is applied to determine SAR test exclusion. FCC ID : 2ADADFLXSMRTX5 Maximum measured transmitter power. frequency Maximum Peak Conducted Output Power Max Antenna Gain GHz dBm dBi 2402 0.254 0.7 2441 0.435 0.7 2480 0.285 0.7 Remark: The best case gain of the antenna is 0.7dBi. 0.7dBi logarithmic terms convert to numeric result is nearly 1.17 0.435dbm=1.105mW [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 1.105/5*√2.441=0.34≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. Conclusion: No SAR is required.

FCC RADIO TEST REPORT FCC ID: 2ADADFLXSMRTX5 Product： FM Transmitter Trade Name： N/A Model Name： FLEXSMART-X5 Serial Model： N/A Report No.： BZT- 201409234R1 Prepared for Shenzhen YOHE Technology Co., Ltd. JunWeiXing Industry Park, TongFuYu Industrial Zone, ZhenMei Village, GuangMing District, Shenzhen, China Prepared by BZT Testing Technology Co., Ltd. 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street, Bao’an District, Shenzhen P.R. China Page 2 of 84 Report No.: BZT- 201409234R2 TEST RESULT CERTIFICATION Applicant’s name ................. : Shenzhen YOHE Technology Co., Ltd. Address ................................. : JunWeiXing Industry Park, TongFuYu Industrial Zone, ZhenMei Village, GuangMing District, Shenzhen, China Manufacture's Name ............ : Shenzhen YOHE Technology Co., Ltd. Address ................................. : JunWeiXing Industry Park, TongFuYu Industrial Zone, ZhenMei Village, GuangMing District, Shenzhen, China Product description Product name ........................... : FM Transmitter Model and/or type reference : FLEXSMART-X5 Trade Name N/A Serial Model .............................. : N/A Standards ............................. : FCC Part15.247 Test procedure .............................. ANSI C63.4-2003 This device described above has been tested by BZT, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of BZT, this document may be altered or revised by BZT, personal only, and shall be noted in the revision of the document. Date of Test ............................................ : Date (s) of performance of tests ............. : 20 Sep. 2014 ~30 Sep. 2014 Date of Issue ........................................... : 30 Sep. 2014 Test Result ............................................... : Pass Testing Engineer : (Apple Huang) Technical Manager : (Tom Zhang) Authorized Signatory : (Bovey Yang) Page 3 of 84 Report No.: BZT- 201409234R2 Table of Contents Page 1 . SUMMARY OF TEST RESULTS 5 1.1 TEST FACILITY 6 1.2 MEASUREMENT UNCERTAINTY 6 2 . GENERAL INFORMATION 7 2.1 GENERAL DESCRIPTION OF EUT 7 2.2 DESCRIPTION OF TEST MODES 9 2.3 TABLE OF PARAMETERS OF TEXT SOFTWARE SETTING 9 2.4 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 10 2.5 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 11 2.6 EQUIPMENTS LIST FOR ALL TEST ITEMS 12 3 . EMC EMISSION TEST 13 3.1 CONDUCTED EMISSION MEASUREMENT 13 3.1.1 POWER LINE CONDUCTED EMISSION LIMITS 13 3.1.2 TEST PROCEDURE 14 3.1.3 DEVIATION FROM TEST STANDARD 14 3.1.4 TEST SETUP 14 3.1.5 EUT OPERATING CONDITIONS 14 3.1.6 TEST RESULTS 15 3.2 RADIATED EMISSION MEASUREMENT 16 3.2.1 RADIATED EMISSION LIMITS 16 3.2.2 TEST PROCEDURE 16 3.2.3 DEVIATION FROM TEST STANDARD 17 3.2.4 TEST SETUP 18 3.2.5 EUT OPERATING CONDITIONS 19 3.2.6 TEST RESULTS (BELOW 30 MHZ) 20 3.2.7 TEST RESULTS (BETWEEN 30M – 1000 MHZ) 21 3.2.8 TEST RESULTS (ABOVE 1000 MHZ) 23 3.2.9 TEST RESULTS (RESTRICTED BANDS REQUIREMENTS) 41 4 . NUMBER OF HOPPING CHANNEL 53 4.1 APPLIED PROCEDURES / LIMIT 53 4.1.1 TEST PROCEDURE 53 4.1.2 DEVIATION FROM STANDARD 53 4.1.3 TEST SETUP 53 4.1.4 EUT OPERATION CONDITIONS 53 4.1.5 TEST RESULTS 54 5 . AVERAGE TIME OF OCCUPANCY 55 5.1 APPLIED PROCEDURES / LIMIT 55 Page 4 of 84 Report No.: BZT- 201409234R2 Table of Contents Page 5.1.1 TEST PROCEDURE 55 5.1.2 DEVIATION FROM STANDARD 55 5.1.3 TEST SETUP 56 5.1.4 EUT OPERATION CONDITIONS 56 5.1.5 TEST RESULTS 57 6 . HOPPING CHANNEL SEPARATION MEASUREMENT 63 6.1 APPLIED PROCEDURES / LIMIT 63 6.1.1 TEST PROCEDURE 63 6.1.2 DEVIATION FROM STANDARD 63 6.1.3 TEST SETUP 63 6.1.4 EUT OPERATION CONDITIONS 63 6.1.5 TEST RESULTS 64 7 . BANDWIDTH TEST 70 7.1 APPLIED PROCEDURES / LIMIT 70 7.1.1 TEST PROCEDURE 70 7.1.2 DEVIATION FROM STANDARD 70 7.1.3 TEST SETUP 70 7.1.4 EUT OPERATION CONDITIONS 70 7.1.5 TEST RESULTS 71 8 . PEAK OUTPUT POWER TEST 77 8.1 APPLIED PROCEDURES / LIMIT 77 8.1.1 TEST PROCEDURE 77 8.1.2 DEVIATION FROM STANDARD 77 8.1.3 TEST SETUP 77 8.1.4 EUT OPERATION CONDITIONS 77 8.1.5 TEST RESULTS 78 9 . EUT TEST PHOTO 84 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Page 5 of 84 Report No.: BZT- 201409234R2 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.247) , Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS 15.247(a)(1) Hopping Channel Separation PASS 15.247(b)(1) Peak Output Power PASS 15.247(c) Radiated Spurious Emission PASS 15.247(a)(iii) Number of Hopping Frequency PASS 15.247(a)(iii) Dwell Time PASS 15.247(a)(1) Bandwidth PASS 15.205 Band Edge Emission PASS 15.203 Antenna Requirement PASS NOTE: (1)” N/A” denotes test is not applicable in this Test Report Page 6 of 84 Report No.: BZT- 201409234R2 1.1 TEST FACILITY BZT Testing Technology Co., Ltd. Add. : 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street, Bao’an District, Shenzhen P.R. China. FCC Registered No.: 701733 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U，where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2，providing a level of confidence of approximately 95 %。 No. Item Uncertainty 1 Conducted Emission Test ±1.38dB 2 RF power,conducted ±0.16dB 3 Spurious emissions,conducted ±0.21dB 4 All emissions,radiated(<1G) ±4.68dB 5 All emissions,radiated(>1G) ±4.89dB 6 Temperature ±0.5°C 7 Humidity ±2% Page 7 of 84 Report No.: BZT- 201409234R2 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Equipment FM Transmitter Trade Name N/A Model Name FLEXSMART-X5 Serial Model N/A Model Difference N/A Product Description The EUT is a FM Transmitte r Operation Frequency: 2402~2480 MHz Modulation Type: BT(1Mbps): GFSK BT EDR(2Mbps): ∏ /4-DQPSK BT EDR(3Mbps): 8-DPSK Bit Rate of Transmitter 1Mbps/2Mbps/3Mbps Number Of Channel 79 CH …

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Page 84 of 84 Report No.: BZT- 201409234R2 9. EUT TEST PHOTO Radiated Measurement Photos