2AAV8IWIRELESS DOORBELL (TRANSMITTER)

I -UserManual Wireless Digital Doorchimes FCC NOTE 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. THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS OR CHANGE TO THIS EQUIPMENT. SUCH MODIFICATIONS OR CHANGE COULD VOID AND CHANGE ANNTENA WHICH THE MANUFACTURER PROVIDES. IT IS THE USER'S AUTHORITY TO OPERATE THE EQUIPMENT.

SHENZHEN QIAOHUA INDUSTRIES LIMITED Model Differences Statement Product name: Wireless Doorbell(Transmitter) Product No.:I, A, B, E, F, G, H, J, Q Describe the differences: The circuit principle, PCB wiring and intenal structure of the above three models are the same, Only the model name and the appearance of color are different. Signature: Data: 2013-08-27

Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: August 27, 2013 SUBJECT: FCC Application for (FCC ID:2AAV8 I ) To Whom It May Concern: I, the undersigned, hereby attest to the fact that I will apply the Declaration of Conformity procedure to the receiver operate at frequencies from 30-960 MHz device. I understand the following FCC requirements: 1.Devices subject to the DoC procedure are required to be tested to show compliance with the FCC technical regulations by a recognized accredited testing laboratory. The testing laboratory must be accredited by a Commission approved accreditation body or designated under the terms of a government-to-government Mutual Recognition Agreement (MRA). A listing of those accredited testing laboratories that have been recognized by the Commission is published on the FCC Webpage: https://apps.fcc.gov/oetcf/eas/reports/TestFirmSearch.cfm (Select the "accredited" option to search for FCC recognized accredited test firms.) 2.Test facilities located in countries, where the U.S. does not have an operational Telcom MRA are not recognized by the FCC to test for the DoC procedure. 3.Pt 2.1077 contains the list of information that must be included in the Declaration of Conformity, which must be supplied with each product sold. The DoC compliance info shall be included in the User’s Manual or as a separate sheet. The info must contain the name, address, and phone number of the responsible party, which must be located within the United States. According to 2.909(c)(2), the responsible party is either the Manufacturer or if the product is imported the Importer . Regards, Signature: Hu Guozhi/ General manage: Applicant: SHENZHEN QIAOHUA INDUSTRIES LIMITED Address: Qiaohua Industrial Zone, Luo Tian Forestry Center, Song Gang Town, Bao An District, Shenzhen, China SHENZHEN QIAOHUA INDUSTRIES LIMITED

SHENZHEN QIAOHUA INDUSTRIES LIMITED Date: August 27, 2013 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2AAV8I Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Schematics SCH.pdf Block Diagram BlockDiagram.pdf Operational Description CircuitDescription.pdf 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 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, Qiaohua Industrial Zone, Luo Tian Forestry Center, Song Gang Town, Bao An District, Shenzhen, China ............................................................... Signature Swiss.yang/ General manager ............................................................... Typed name and Title

SHENZHEN QIAOHUA INDUSTRIES LIMITED FCC ID: 2AAV8I POWER OF ATTORNEY Date: August 27, 2013 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern: We, the undersigned, hereby authorize Waltek Services (ShenZhen) Co., Ltd. (Philo Zhong) on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Waltek Services (ShenZhen) Co., Ltd. (Philo Zhong) on our behalf shall have the same effect as acts of our own. This authorization expires on August 26, 2014. This is to advise that we are in full compliance with the Anti-Drug Abuse Act. We, SHENZHEN QIAOHUA INDUSTRIES LIMITED, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Sincerely, ................................................................................. Signature Swiss.yang/ General manager ................................................................................. Typed name and Title

Reference No.: WTD13S0604591E Page 23 of 27 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn 12 Photographs - Constructional Details 12.1 EUT - Appearance View Reference No.: WTD13S0604591E Page 24 of 27 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn Reference No.: WTD13S0604591E Page 25 of 27 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn

FCC Label FCC Label Sample for model: I , A, B, E, F, G, H, J, Q FCC ID: 2AAV8I 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.

FCC Label Location for model: I The Label must not be a stick-on paper. The Label on these products must be permanently affixed to the product and readily visible at the time of purchase and must last the expected lifetime of the equipment not be readily detachable. SHENZHEN QIAOHUA INDUSTRIES LIMITE Model No.: I FCC ID: 2AAV8I DC3V by battery 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 nterference received, including interference that may cause undesired operation.

Reference No.: WTD13S0604591E Page 26 of 27 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn 12.2 EUT- Internal View Reference No.: WTD13S0604591E Page 27 of 27 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn =End of test report== RF Antenna

Reference No.: WTD13S0604591E Page 1 of 23 FCC TEST REPORT Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn FCC ID : 2AAV8I Applicant : SHENZHEN QIAOHUA INDUSTRIES LIMITED Address : Qiaohua Industrial Zone, Luo Tian Forestry Center, Song Gang Town, Bao An District, Shenzhen, China Manufacturer : The same as above Address : The same as above Equipment Under Test (EUT) : Product Name : Wireless Doorbell(Transmitter) Model No. : I , A, B, E, F, G, H, J, Q Rules : FCC CFR47 Part15 Section 15.231: 2012 Date of Test : Jun 21~23, 2013 Date of Issue : Aug 8, 2013 Test Result : PASS* Remark: * The sample described above has been tested to be in compliance with the requirements of ANSI C63.4:2003. The test results have been reviewed and comply with the rules listed above and found to meet their essential requirements. PERPARED BY: Waltek Services (Shenzhen) Co., Ltd. 1/F, Fukangtai Building, West of Baima Road., Songgang Street, Bao’an District, Shenzhen, China Tel: +86-755-83551033 Fax: +86-755-83552400 Compiled by: Approved by: Maikou Zhang / Project Engineer Philo Zhong / Manager Reference No.: WTD13S0604591E Page 2 of 23 2 Test Summary Test Items Test Requirement Result Conducted Emissions 15.207 N/A Radiated Spurious Emissions 15.205(a) 15.209 15.231(b) PASS Periodic Operation 15.231(a) PASS 20dB Bandwidth 15.231(c) PASS Antenna Requirement 15.203 PASS Reference No.: WTD13S0604591E Page 3 of 23 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn 3 Contents Page 1 COVER PAGE ............................................................................................................................................1 2 TEST SUMMARY....................................................................................................................................................2 3 CONTENTS..............................................................................................................................................................3 4 GENERAL INFORMATION...................................................................................................................................4 4.1 GENERAL DESCRIPTION OF E.U.T..............................................................................................................4 4.2 DETAILS OF E.U.T........................................................................................................................................4 4.3 TEST FACILITY..............................................................................................................................................4 4.4 TEST LOCATION............................................................................................................................................4 4.5 GENERAL CONDITION...................................................................................................................................4 4.5.1 Environmental condition of test site .............................................................................................................5 4.5.2 Test Mode .....................................................................................................................................................5 5 EQUIPMENT USED DURING TEST....................................................................................................................6 5.1 EQUIPMENTS LIST........................................................................................................................................6 5.2 MEASUREMENT UNCERTAINTY....................................................................................................................6 5.3 TEST EQUIPMENT CALIBRATION..................................................................................................................6 6 CONDUCTED EMISSION TEST...........................................................................................................................7 7 RADIATION EMISSION TEST..............................................................................................................................8 7.1 TEST EQUIPMENT...............................................................................................................................................8 7.2 MEASUREMENT UNCERTAINTY..........................................................................................................................8 7.3 TEST PROCEDURE..............................................................................................................................................8 7.4 EUT OPERATION:........................................................................................................................................8 7.5 TEST SETUP.................................................................................................................................................9 7.6 SPECTRUM ANALYZER SETUP...................................................................................................................10 7.7 TEST PROCEDURE.....................................................................................................................................10 7.8 CORRECTED AMPLITUDE & MARGIN CALCULATION..................................................................................10 7.9 SUMMARY OF TEST RESULTS....................................................................................................................11 8 PERIODIC OPERATION......................................................................................................................................13 9 20DB BANDWIDTH..............................................................................................................................................16 9.1 TEST PROCEDURE.....................................................................................................................................16 9.2 TEST RESULT.......…

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Reference No.: WTD13S0604591E Page 18 of 23 Waltek Services (Shenzhen) Co.,Ltd. http://www.waltek.com.cn 11 Photographs of Testing 11.1 Radiation Emission Test View From 30MHz to 1GHz Above 1GHz