R7GA6Wireless Bluetooth headphone

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. 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: 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 collocated or operating in conjunction with any other antenna or transmitter.

SCS-F18: Project and Product Certification Representative Authorization Letter Page 1 of 2 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 2 Rev 5.0 Shenzhen Kaijuyuan Technology Co., Ltd 2015/10/10 To: SIEMIC, INC. 775 Montague Expressway, Milpitas, CA 95035 USA Dear Sir/Madam, Re: Product Certification Representative Authorization Letter We, Shenzhen Kaijuyuan Technology Co., Ltd hereby authorize SIEMIC, Inc. to act as a Certification Body for certifying for the following project(s): Product description: Wireless Bluetooth headphone model name: A6 Trademark: syllable FCC ID: R7GA6 Sincerely, Client’s signature Client’s name / title : Chris Tan/manager Contact information / address: Rm 1606, Seven Stars Square, Meilong Rd, Longhua,Bao'an, Shenzhen, Guangdong

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 Shenzhen Kaijuyuan Technology Co., Ltd 2015/10/10 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Subject: Permanent Confidentiality Request for FCC ID: R7GA6 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 signature Client’s name / title : Chris Tan/manager Contact information / address: Rm 1606, Seven Stars Square, Meilong Rd, Longhua,Bao'an, Shenzhen, Guangdong

Shenzhen BCTC Technology Co., Ltd. FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page1 of 5 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Photo 1 Photo 2 Shenzhen BCTC Technology Co., Ltd. FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page2 of 5 Photo 3 Photo 4 Shenzhen BCTC Technology Co., Ltd. FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page3 of 5 Photo 5 Photo 6 Lab provides adapter

FCC ID: R7GA6

Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC-150912179 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page 1 of 37 FCC Part 15C Test Report FCC ID: R7GA6 Product Name: Wireless Bluetooth headphone Trademark: syllable Model Name : A6 Prepared For : Shenzhen Kaijuyuan Technology Co., Ltd Address : Rm 1606, Seven Stars Square, Meilong Rd, Longhua,Bao’an, Shenzhen, Guangdong Prepared By : Shenzhen BCTC Technology Co., Ltd. Address : No.101,Yousong Road,Longhua New District, Shenzhen,China Test Date: Oct. 08– Oct. 13, 2015 Date of Report : Oct. 13, 2015 Report No.: BCTC-150912179 Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC-150912179 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page 2 of 37 VERIFICATION OF COMPLIANCE Applicant’s name ................. : Shenzhen Kaijuyuan Technology Co., Ltd Address ................................. : Rm 1606, Seven Stars Square, Meilong Rd, Longhua,Bao’an, Shenzhen, Guangdong Manufacture's Name ............ : Shenzhen Kaijuyuan Technology Co., Ltd Address ................................. : Rm 1606, Seven Stars Square, Meilong Rd, Longhua,Bao’an, Shenzhen, Guangdong Product description Product name ............................ : Wireless Bluetooth headphone Trademark: syllable Model Name: A6 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-150912179 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page 3 of 37 Table of Contents Page 1 . SUMMARY OF TEST RESULTS 5 1.1 TEST FACILITY 5 1.2 MEASUREMENT UNCERTAINTY 5 2 . GENERAL INFORMATION 6 2.1 GENERAL DESCRIPTION OF EUT 6 2.2 DESCRIPTION OF TEST MODES 7 2.3 TABLE OF PARAMETERS OF TEXT SOFTWARE SETTING 7 2.4 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 8 2.5 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 8 2.6 EQUIPMENTS LIST FOR ALL TEST ITEMS 9 3 . EMC EMISSION TEST 10 3.1 CONDUCTED EMISSION MEASUREMENT 10 3.1.1 POWER LINE CONDUCTED EMISSION LIMITS 10 3.1.2 TEST PROCEDURE 11 3.1.3 DEVIATION FROM TEST STANDARD 11 3.1.4 TEST SETUP 11 3.1.5 EUT OPERATING CONDITIONS 11 3.1.6 TEST RESULTS 12 3.2 RADIATED EMISSION MEASUREMENT 14 3.2.1 RADIATED EMISSION LIMITS 14 3.2.2 TEST PROCEDURE 15 3.2.3 DEVIATION FROM TEST STANDARD 15 3.2.4 TEST SETUP 16 3.2.5 EUT OPERATING CONDITIONS 17 3.2.6 TEST RESULTS 18 4 . BANDWIDTH TEST 23 4.1 APPLIED PROCEDURES / LIMIT 23 4.1.1 TEST PROCEDURE 23 4.1.2 DEVIATION FROM STANDARD 23 4.1.3 TEST SETUP 23 4.1.4 EUT OPERATION CONDITIONS 23 4.1.5 TEST RESULTS 24 5 . 100 KHZ BANDWIDTH OF FREQUENCY BAND EDGE 31 5.1 DEVIATION FROM STANDARD 32 5.2 TEST SETUP 32 5.3 EUT OPERATION CONDITIONS 32 Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC-150912179 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page 4 of 37 Table of Contents Page 5.4 TEST RESULTS 32 6 . ANTENNA REQUIREMENT 34 6.1 STANDARD REQUIREMENT 34 6.2 EUT ANTENNA 34 7 . EUT TEST PHOTO 35 8 . EUT PHOTO 37 Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC-150912179 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page 5 of 37 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 PASS 15.249 Fundamental &Radiated Spurious Emission Measurement 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-150912179 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page 6 of 37 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Equipment Wireless Bluetooth headphone Trade Name syllable Model Name A6 Serial Model N/A Model Difference N/A Product Description Operation Frequency: 2402~2480 MHz Modulation Type: GFSK,PI/4 DPSK,8DPSK Bit Rate of Transmitter 1M/2M/3Mbps Number Of Channel 79 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. Battery DC 3.7V 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 2402 27 2429 54 2456 01 2403 28 2430 55 2457 02 2404 29 2431 56 2458 03 2405 30 2432 57 2459 04 2406 31 2433 58 2460 05 2407 32 2434 59 2461 06 2408 33 2435…

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Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC-150912179 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page 35 of 37 7. EUT TEST PHOTO Radiated Measurement Photos Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC-150912179 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page 36 of 37 conducted Emission