YIZRT507FM transmitter

SCS-F19: Confidentiality Request Letter Page 1 of 2 Rev 4.0 775 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 (obsolete) 2.0 3.0 Jan-31-2012 Added IC confidentiality letter form (current) 3.0 4.0 March-26-2015 SCS-F19: Confidentiality Request Letter Page 2 of 2 Rev 4.0 SARIANA LLC 2015-08-28 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Subject: Permanent Confidentiality Request for FCC ID: YIZRT507 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, Client’s name / title: allen Lv / engineer Address: 401,4F, NO.1 Building,Zhongkenuo Industry Park,Hezhou Development Zone, Xixiang Street,Baoan District,Shenzhen City, China Tel: 0755-29955759-625 Fax: 0755-61586009 E-mail: [email protected]

ShenZhen Riitek Technology Co.,Ltd Address: A1-4, A zone, Baoyunda Logistic Center, Avenue Xixiang, BaoAn District, Shenzhen, China Tel: 86-755-33851439 Fax: 86-755-33851439 FCC ID: YIZRT507 Model No.: Please refer to Table 1. 1) How does this device operate? This device is a FM audio transmitter, which radiates FM wave on the air by modulating the any required signal to the carrier signal. The transmission frequency is set from 88.1 to 107.9MHz (step freq.:0.1MHz) This product can be powered by 5V. 2) Provide information on the device and its antenna. This product is designed to transmits audio signal from mp3 player or MIC, etc. The transmitter use a non-standard antenna. 3) How is it installed? The transmitter is powered by 5V. It can worked in anywhere. 4) What test procedure was used? Operating condition is according to ANSI C63.10-2013 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 tuning range properly verified? The test lab should indicate in the report that the tuning controls were manually adjusted to verify maximum tuning range. EUT was adjusted to work at the selected channels: 88.1 MHz, 98.1 MHz, and 107.9MHz. The EUT will not allow operating below 88.1 MHz and will not allow operation above 107.9MHz. Press the “frequency +/- button” key to select the transmission frequency. We have indicated the testing in the test report, see clause 7. 7) Was the bandwidth properly tested with maximum audio input? The test was performed with playing typical audio signal with a 2.5 kHz tone at a level 16 dB higher than that required to produce a frequency deviation of 37.5 kHz. We have indicated the operating condition in the test report, see clause 1.7. 8) Provide the test report. Test Report Submitted. Sincerely, Client’s name / title : JunKui Chen / -- Contact information / address : A1-4, A zone, Baoyunda Logistic Center, Avenue Xixiang, BaoAn District, Shenzhen, China Tel: 86-755-33851439 Fax: 86-755-33851439 Additional models No. RT507 RT507+ RT507Plus Rii507 GT507 RE507 RD507 HM507 ZW-507 ZW-507-1 ZW-507+ Table1

ShenZhen Riitek Technology Co.,Ltd Add:401,4F, NO.1 Building,Zhongkenuo Industry Park,Hezhou Development Zone, Xixiang Street,Baoan District,Shenzhen City, China Tel: 0755-29955759-625 Fax: 0755-61586009 Date: 2015-08-28 To: SIEMIC, INC. 775 Montague Expressway, Milpitas, CA 95035 USA FCC ID: YIZRT507 Dear Sir/Madam, We, ShenZhen Riitek Technology Co.,Ltd Hereby declares the following statement for SIEMIC, INC, PCB board, circuit, structure and internal of these model(s) are the same, Only color and model number is different for these model: Product name: FM transmitter Model no.: Please refer to Table 1. Sincerely, Client’s name / title : allen Lv / engineer Contact information / address :401,4F, NO.1 Building,Zhongkenuo Industry Park,Hezhou Development Zone, Xixiang Street,Baoan District,Shenzhen City, China Tel: 0755-29955759-625 Fax: 0755-61586009 E-Mail: [email protected] Additional models No. RT507 RT507+ RT507Plus Rii507 GT507 RE507 RD507 HM507 ZW-507 ZW-507-1 ZW-507+ Table 1

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: YIZRT507 Report No.: LCS1507241575E ________________________________________________________________________________ _________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 1 of 4 1. EXTERIOR PHOTOGRAPHS Fig.1 Fig.2 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: YIZRT507 Report No.: LCS1507241575E ________________________________________________________________________________ _________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 2 of 4 Fig.3 Fig.4 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: YIZRT507 Report No.: LCS1507241575E ________________________________________________________________________________ _________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 3 of 4 Fig.5 Fig.6 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: YIZRT507 Report No.: LCS1507241575E ________________________________________________________________________________ _________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 4 of 4

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD FCC ID: YIZRT507 Report No.:LCS1507241575E This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 1 LABEL AND LOCATION Size:L:1.5cm*W:1.0cm FM transmitter Model No.: RT507 FCC ID: YIZRT507 Label Location

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AFGI-S520 Report No.: LCS1507241575E This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 1 of 2 1. INTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AFGI-S520 Report No.: LCS1507241575E This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 2 of 2 Fig.3

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:YIZRT507 Report No.: LCS1507241575E This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 1 of 23 FCC TEST REPORT FOR ShenZhen Riitek Technology Co.,Ltd FM transmitter Model No.: RT507 Additional Model No.: Please refer to page 5. Prepared for : ShenZhen Riitek Technology Co.,Ltd Address : 401,4F, NO.1 Building,Zhongkenuo Industry Park,Hezhou Development Zone, Xixiang Street,Baoan District,Shenzhen City, China Prepared by : Shenzhen LCS Compliance Testing Laboratory Ltd. Address : 1/F., Xingyuan Industrial Park, Tongda Road, Bao'an Avenue, Bao'an District, Shenzhen, Guangdong, China Date of receipt of test sample : July 24, 2015 Number of tested samples : 1 Serial number : Prototype Date of Test : July 24, 2015–August 26, 2015 Date of Report : August 26, 2015 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:YIZRT507 Report No.: LCS1507241575E This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 2 of 23 FCC TEST REPORT FCC CFR 47 PART 15.239 Report Reference No. ............... : LCS1507241575E Date of Issue ................................. : August 26, 2015 Testing Laboratory Name .......... : Shenzhen LCS Compliance Testing Laboratory Ltd. Address ......................................... : 1/F., Xingyuan Industrial Park, Tongda Road, Bao'an Avenue, Bao'an District, Shenzhen, Guangdong, China Testing Location/ Procedure ......... : Full application of Harmonised standards ■ Partial application of Harmonised standards □ Other standard testing method □ Applicant’s Name ....................... : ShenZhen Riitek Technology Co.,Ltd Address ......................................... : 401,4F, NO.1 Building,Zhongkenuo Industry Park,Hezhou Development Zone, Xixiang Street,Baoan District,Shenzhen City, China Test Specification Standard ........................................ : FCC CFR 47 Part 15.239 Test Report Form No. ................... : LCSEMC-1.0 TRF Originator ............................. : Shenzhen LCS Compliance Testing Laboratory Ltd. Master TRF ................................... : Dated 2011-03 Shenzhen LCS Compliance Testing Laboratory Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen LCS Compliance Testing Laboratory Ltd. is acknowledged as copyright owner and source of the material. Shenzhen LCS Compliance Testing Laboratory 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. ................ : FM transmitter Trade Mark ................................... : N/A Model/ Type reference .................. : RT507 Ratings .......................................... : DC 5V Result ......................................... : Positive Compiled by: Supervised by: Approved by: Kyle Yin/ File administrators Glin Lu/ Technique principal Gavin Liang/ Manager SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:YIZRT507 Report No.: LCS1507241575E This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 3 of 23 FCC -- TEST REPORT Test Result Positive 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. Test Report No. : LCS1507241575E August 26, 2015 Date of issue Type / Model........................... : RT507 EUT......................................... : FM transmitter Applicant............................... : ShenZhen Riitek Technology Co.,Ltd Address.................................. : 401,4F, NO.1 Building,Zhongkenuo Industry Park,Hezhou Development Zone, Xixiang Street,Baoan District,Shenzhen City, China Telephone............................... : / Fax.......................................... : / Manufacturer........................ : ShenZhen Riitek Technology Co.,Ltd Address................................... : 401,4F, NO.1 Building,Zhongkenuo Industry Park,Hezhou Development Zone, Xixiang Street,Baoan District,Shenzhen City, China Telephone............................... : / Fax.......................................... : / Factory................................... : ShenZhen Riitek Technology Co.,Ltd Address................................... : 401,4F, NO.1 Building,Zhongkenuo Industry Park,Hezhou Development Zone, Xixiang Street,Baoan District,Shenzhen City, China Telephone............................... : / Fax.......................................... : / SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID:YIZRT507 Report No.: LCS1507241575E This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 4 of 23 TABLE OF CONTENTS Description Page 1. GENERAL INFORMATION ........................................................................................................ 5 1.1 Description of Device (EUT) ................................................................................................................. 5 1.2 Support equipment List ........................................................................................................................... 5 1.3 External I/O Cable ................................................................................................................................... 5 1.4 Description of Test Facility ..................................................................................................................... 6 1.5 Statement of The Measurement Uncertainty ........................................................................................... 6 1.6 Measurement Uncertainty..................…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: YIZRT507 Report No.:LCS1507241575E _______________________________________________________________________________________________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 1 of 2 TEST SETUP PHOTOGRAPHS 1.Photo of Radiated Measurement Below 1G SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: YIZRT507 Report No.:LCS1507241575E _______________________________________________________________________________________________ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd.. Page 2 of 2 1.2. Photo of Line Conducted Emissions Measurement