2AG77SN910TXSpeedlite

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 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. 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

Shenzhen Shanny Photography Optical Equipment Co., Ltd Agent Authorization Letter 2016/1/11 MET Laboratories, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen BCTC Technology Co., Ltd to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Client’s name / title : Xuan Ni / Manager Contact information / address: Rm.505,Fuquan Building,Qingquan Road,Longhua New District,Shenzhen,China

Shenzhen Shanny Photography Optical Equipment Co., Ltd Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: SUBJECT: FCC Application for (FCC ID: 2AG77SN910TX) To Whom It May Concern: We, the undersigned, hereby attest to the fact that we will apply the Declaration of Conformity procedure to the class B computer peripheral portion of this composite device. We understand that 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. 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. Testing laboratory: The Hong Kong Standards and Testing Centre Ltd.( 10 Dai Wang Street, Taipo Industrial Estate, N.T., Hong Kong FCC registration number: 607756 Name: Wilson Wong Tel: 852-2666-1888) Regards, Signatory Client’s name / title : Xuan Ni / Manager Contact information / address: Rm.505,Fuquan Building,Qingquan Road,Longhua New District,Shenzhen,China

Shenzhen Shanny Photography Optical Equipment Co., Ltd Long Term Confidentiality Request Letter 2016-1-12 MET Laboratories, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR EUT NAME: Speedlite MODEL : SN910TX FCC ID: 2AG77SN910TX To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the - Block Diagram - Schematics - Operational Description required to be submitted with this application be permanently withheld from public review. SPECIFY REASON FOR REQUEST (i.e. the above documents are company proprietary information that could never get into the possession of your competition). Please contact me if there is any information you may need. Sincerely, Client’s name / title : Xuan Ni / Manager Contact information / address: Rm.505,Fuquan Building,Qingquan Road,Longhua New District,Shenzhen,China

M/N: SN910TX FCC ID: 2AG77SN910TX 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. Label location

Antenna location

Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC-151216654 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com.cn Page 1 of 26 FCC Part 15C Test Report FCC ID: 2AG77SN910TX Product Name: Speedlite Trademark: Model Name : SN910TX Prepared For : Shenzhen Shanny Photography Optical Equipment Co., Ltd Address : Rm.505,Fuquan Building,Qingquan Road,Longhua New District,Shenzhen,China Prepared By : Shenzhen BCTC Technology Co., Ltd. Address : No.101,Yousong Road,Longhua New District, Shenzhen,China Test Date: Dec. 31, 2015 – Jan. 9, 2016 Date of Report : Jan. 10, 2016 Report No.: BCTC-151216654 Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC-151216654 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com.cn Page 2 of 26 VERIFICATION OF COMPLIANCE Applicant’s name ................. : Shenzhen Shanny Photography Optical Equipment Co., Ltd Address ................................. : Rm.505,Fuquan Building,Qingquan Road,Longhua New District,Shenzhen,China Manufacture's Name ............ : Shenzhen Shanny Photography Optical Equipment Co., Ltd Address ................................. : Rm.505,Fuquan Building,Qingquan Road,Longhua New District,Shenzhen,China Product description Product name ........................... : Speedlite Trademark: Model Name: SN910TX Test procedure FCC Part15.249 Standards ANSI C63.10-2013 This device described above has been tested by BCTC, 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 BCTC, this document may be altered or revised by BCTC, personal only, and shall be noted in the revision of the document. Test Result ............................................ : Pass Testing Engineer : (Eric Yang) Technical Manager : (Sophia Lee) Authorized Signatory : (Carson. Zhang) Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC-151216654 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com.cn Page 3 of 26 Table of Contents Page 1 . SUMMARY OF TEST RESULTS 4 1.1 TEST FACILITY 4 1.2 MEASUREMENT UNCERTAINTY 4 2 . GENERAL INFORMATION 5 2.1 GENERAL DESCRIPTION OF EUT 5 2.2 DESCRIPTION OF TEST MODES 6 2.3 TABLE OF PARAMETERS OF TEXT SOFTWARE SETTING 6 2.4 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 6 2.5 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 7 2.6 EQUIPMENTS LIST FOR ALL TEST ITEMS 7 3 . EMC EMISSION TEST 8 3.1 CONDUCTED EMISSION MEASUREMENT 8 3.1.1 POWER LINE CONDUCTED EMISSION LIMITS 8 3.1.2 TEST PROCEDURE 9 3.1.3 DEVIATION FROM TEST STANDARD 9 3.1.4 TEST SETUP 9 3.1.5 EUT OPERATING CONDITIONS 9 3.1.6 TEST RESULTS 9 3.2 RADIATED EMISSION MEASUREMENT 10 3.2.1 RADIATED EMISSION LIMITS 10 3.2.2 TEST PROCEDURE 11 3.2.3 DEVIATION FROM TEST STANDARD 11 3.2.4 TEST SETUP 12 3.2.5 EUT OPERATING CONDITIONS 13 3.2.6 TEST RESULTS 14 4 . BANDWIDTH TEST 18 4.1 APPLIED PROCEDURES / LIMIT 18 4.1.1 TEST PROCEDURE 18 4.1.2 DEVIATION FROM STANDARD 18 4.1.3 TEST SETUP 18 4.1.4 EUT OPERATION CONDITIONS 18 4.1.5 TEST RESULTS 19 5 . BANDWIDTH OF FREQUENCY BAND EDGE 21 5.1 DEVIATION FROM STANDARD 21 5.2 TEST SETUP 21 5.3 EUT OPERATION CONDITIONS 21 5.4 TEST RESULTS 22 6 . ANTENNA REQUIREMENT 23 6.1 STANDARD REQUIREMENT 23 6.2 EUT ANTENNA 23 7 . EUT TEST PHOTO 24 8 . PHOTO OF THE EUT 25 Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC-151216654 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com.cn Page 4 of 26 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.249) , Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission N/A 15.249 Radiated Spurious Emission PASS 15.249 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 1.1 TEST FACILITY Shenzhen BCTC Technology Co., Ltd. Add.:No.101,Yousong Road,Longhua New District, Shenzhen,China FCC Registration No.:187086 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% Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC-151216654 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com.cn Page 5 of 26 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Equipment Speedlite Trade Name Model Name SN910TX Product Description Operation Frequency: 2415~2429 MHz Modulation Type: FSK Number Of Channel 15 CH Antenna Designation: Please see Note 3. Based on the application, features, or specification exhibited in User's Manual, the EUT is considered as an ITE/Computing Device. More details of EUT technical specification, please refer to the User's Manual. Channel List Please refer to the Note 2. Adapter N/A Battery DC 3V(1.5V AA battery*2) Connecting I/O Port(s) Please refer to the User's Manual hardware version -- Software version -- Serial number -- Note: 1. For a more detailed features description, please refer to the manufacturer’s specifications or the User's Manual. 2. Channel List Channel Frequency (MHz) Channel Frequency (MHz) Channel Frequency (MHz) 00 2415 05 2420 10 2425 01 2416 06 2421 11 2426 02 2417 07 2422 12 2427 03 2418 08 2423 13 2428 04 2419 09 2424 14 2429 3. Table for Filed Antenna Ant. Brand Model Name Antenna Type Connector Gain (dBi) NOTE 1 N/A N/A Internal Antenna N/A 2.0 Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC-151216654 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com.cn Page 6 of 26 2.2 DESCRIPTION OF TEST MODES To investiga…

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Radiated Emission