2AF72BT20Bluetooth speaker

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

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 Kemeichen Electronics Co., Ltd. 2015/10/16 To: SIEMIC, INC. 775 Montague Expressway, Milpitas, CA 95035 USA Dear Sir/Madam, Re: Product Certification Representative Authorization Letter We, Shenzhen Kemeichen Electronics Co., Ltd. hereby authorize SIEMIC, Inc. to act as a Certification Body for certifying for the following project(s): Product description: Bluetooth speaker model name: BT20, BT100, SX-803, SX-804, SX-805, SX-806, SX-807, SX-808, SX-809, SX-810. Trademark: N/A FCC ID: 2AF72BT20 Sincerely, Client’s signature Client’s name / title : Hongxing xia/manager Contact information / address: 2F,Building3,Wulian Road,No.25,Longxi community, Longgang Street,Longgang District, Shenzhen

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 Kemeichen Electronics Co., Ltd. 2015/10/16 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Subject: Permanent Confidentiality Request for FCC ID: 2AF72BT20 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 : Hongxing xia/manager Contact information / address: 2F,Building3,Wulian Road,No.25,Longxi community, Longgang Street,Longgang District, Shenzhen

Shenzhen Kemeichen Electronics Co., Ltd. Model Difference FCC ID: 2AF72BT20 Model : BT20, BT100, SX-803, SX-804, SX-805, SX-806, SX-807, SX-808, SX-809, SX-810. All the same, Only model name is different. Regards Sincerely Client’s signature Client’s name / title : Hongxing xia/manager Contact information / address: 2F,Building3,Wulian Road,No.25,Longxi community, Longgang Street,Longgang District, Shenzhen

Shenzhen BCTC Technology Co., Ltd. FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page1 of 7 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 7 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 7 Photo 5 Photo 6 Shenzhen BCTC Technology Co., Ltd. FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page4 of 7 Photo 7 Lab provides adapter

Model: BT20 FCC ID: 2AF72BT20 Shenzhen Kemeichen Electronics Co., Ltd. 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 de vice must accept any interference received, including interference that may cause undesired operation.

Shenzhen BCTC Technology Co., Ltd. FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page5 of 7 Photo 8 Photo 9 Shenzhen BCTC Technology Co., Ltd. FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page6 of 7 Photo 10 Photo 11 BT ANT Shenzhen BCTC Technology Co., Ltd. FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page7 of 7 Photo 12 Photo 13

Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC-120912120 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page 1 of 35 FCC Part 15C Test Report FCC ID: 2AF72BT20 Product Name: Bluetooth speaker Trademark: N/A Model Name : BT20 BT100, SX-803, SX-804, SX-805, SX-806, SX-807, SX-808, SX-809, SX-810. Prepared For : Shenzhen Kemeichen Electronics Co., Ltd. Address : 2F,Building3,Wulian Road,No.25,Longxi community, Longgang Street,Longgang District, Shenzhen Prepared By : Shenzhen BCTC Technology Co., Ltd. Address : No.101,Yousong Road,Longhua New District, Shenzhen,China Test Date: Oct. 09– Oct. 15, 2015 Date of Report : Oct. 15, 2015 Report No.: BCTC-120912120 Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC-120912120 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page 2 of 35 VERIFICATION OF COMPLIANCE Applicant’s name ................. : Shenzhen Kemeichen Electronics Co., Ltd. Address ................................. : 2F,Building3,Wulian Road,No.25,Longxi community, Longgang Street,Longgang District, Shenzhen Manufacture's Name ............ : Shenzhen Kemeichen Electronics Co., Ltd. Address ................................. : 2F,Building3,Wulian Road,No.25,Longxi community, Longgang Street,Longgang District, Shenzhen Product description Product name ............................ : Bluetooth speaker Trademark: N/A Model Name: BT20 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-120912120 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page 3 of 35 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 29 5.1 DEVIATION FROM STANDARD 30 5.2 TEST SETUP 30 5.3 EUT OPERATION CONDITIONS 30 Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC-120912120 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page 4 of 35 Table of Contents Page 5.4 TEST RESULTS 30 6 . ANTENNA REQUIREMENT 32 6.1 STANDARD REQUIREMENT 32 6.2 EUT ANTENNA 32 7 . EUT TEST PHOTO 33 8 . EUT PHOTO 35 Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC-120912120 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page 5 of 35 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-120912120 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page 6 of 35 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Equipment Bluetooth speaker Trade Name N/A Model Name BT20 Serial Model BT100, SX-803, SX-804, SX-805 SX-806, SX-807, SX-808, SX-809, SX-810. Model Difference All the same, Only model name is different. 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 Freque…

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Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC-120912120 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page 32 of 34 7. EUT TEST PHOTO Radiated Measurement Photos Shenzhen BCTC Technology Co., Ltd. Report No.: BCTC-120912120 FCC Report Tel: 400-788-9558 0755-33019988 Web:Http//www.bctc-lab.com Page 33 of 34 conducted Emission