2AD3J-MINICLUTCHBluetooth Speaker

Da Chang Industries Co., Ltd PHOENIX TEST-LAB GmbH Product Certification Königswinkel 10 D 32825 Blomberg Date: 29.01.2015 Authority to Act as an Agent We declare that the following representative (agent) Name Mark Wen Position General Manager Company Name Most Technology Service Co., Ltd. Address No.5, 2 nd Langshan Road, North District, Hi-Tech Industrial Park, Nanshan, Shenzhen, Guangdong, China Tel / Fax 86-755-86170306/86-755-86170310 E-Mail [email protected] to act on our behalf on all matters concerning the application and documents submitted to PHOENIX TEST-LAB for product certification below Product Name MINI-CLUTCH SPEAKER Model Name SA-MC01 Brand Name STELLE AUDIO Yours sincerely, Signatory Name Jane Hu Position Engineer Company Name Da Chang Industries Co., Ltd Address JinBei Road, Chang Ping Town, Dong Guan City, GuangDong Province Tel / Fax 86-769-8108 2386 /86-769-8993 3228 E-Mail [email protected] In case of FCC, we certify that we are not subject to a denial of Federal benefits, that include FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. §862 because of a conviction for possession or distribution of a controlled substance.

Da Chang Industries Co., Ltd Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Request for Confidentiality Company name: Da Chang Industries Co., Ltd FCC ID: 2AD3J-MINICLUTCH FCC Part 15 Certification Gentlemen, Pursuant to 47 CFR 0.457(d)(1)(ii) and 0.459 we hereby requests permanent confidentiality of the following documents for the subject application: Exhibit Type Description ☒ Schematics All circuitry of devices and component values ☒ Block Diagrams Details of device showing the frequency of all oscillators ☐ Bill Of Materials Parts list of the product for the radio device ☒ Operational Description Description of the circuit functions Note: Exhibit types that are commonly held confidential are: (1) Schematics, (2) Block Diagrams, (3) Bill Of Materials, (4) Operational Descriptions. Any exhibit NOT granted confidentiality is viewable on the FCC website as soon as a grant is issued. These documents contain detailed system and equipment description and related information about the product which we considers to be proprietary, confidential and a custom design and otherwise would not release to the general public. Since the design is a basis from which future technological products will evolve, we consider that this information would be of benefit to its competitors and that the disclosure of the information in these documents would give competitors an unfair advantage in the market. Yours sincerely, Signatory Name Jane Hu Position Engineer Company Name Da Chang Industries Co., Ltd Address JinBei Road, Chang Ping Town, Dong Guan City, GuangDong Province Tel / Fax 86-769-8108 2386 /86-769-8993 3228 E-Mail [email protected]

Model No.: SA-MC01 FRONT VIEW OF SAMPLE BACK VIEW OF SAMPLE Model No.: SA-MC01 UP VIEW OF SAMPLE DOWN VIEW OF SAMPLE Model No.: SA-MC01 LEFT VIEW OF SAMPLE RIGHT VIEW OF SAMPLE Model No.: SA-MC01 PHOTO OF THE ENTIRE SAMPLE

FCC ID Label Location

Model No: SA-MC01 INT ERNAL PHOTO OF SAMPLE – 1 INTERNAL PHOTO OF SAMPLE – 2 Page 1 of 5 Model No: SA-MC01 INT ERNAL PHOTO OF SAMPLE – 3 INTERNAL PHOTO OF SAMPLE – 4 Page 2 of 5 Model No: SA-MC01 INT ERNAL PHOTO OF SAMPLE – 5 INTERNAL PHOTO OF SAMPLE – 6 Page 3 of 5 Model No: SA-MC01 INT ERNAL PHOTO OF SAMPLE – 7 INTERNAL PHOTO OF SAMPLE – 8 Page 4 of 5 Model No: SA-MC01 Page 5 of 5 INTERNAL PHOTO OF SAMPLE – 9 INTERNAL PHOTO OF SAMPLE – 10

S FCC 47 CFR PART 15 SUBPART C TEST REPORT For Applicant: Da Chang Industries Co., Ltd Address: JinBei Road, Chang Ping Town, Dong Guan City, GuangDong Province Product Name: MINI-CLUTCH SPEAKER Model Name: SA-MC01 Brand Name: STELLE AUDIO FCC ID: 2AD3J-MINICLUTCH Report No.: MTE/SAL/A15010137 Date of Issue: Jan. 28, 2015 Issued by : Most Technology Service Co., Ltd. Address : No.5, Langshan 2nd Road, North District, Hi-tech Industrial Park, Nanshan, Shenzhen, Guangdong, China Tel : 86-755-8602 6850 Fax : 86-755-2601 3350 The report consists 53 pages in total. It may be duplicated completely for legal use with the approval of the applicant. It should not be reproduced except in full, without the written approval of our laboratory. The client should not use it to claim product endorsement by MOST. The test results in the report only apply to the tested sample. The test report shall be invalid without all the signatures of testing engineers, reviewer and approver. FCC ID: 2AD3J-MINICLUTCH Report No.: MTE/SAL/A15010137 Page 2 of 53 TABLE OF CONTENTS 1. VERIFICATION OF CONFORMITY.......................................................................................... 4 2. GENERAL INFORMATION ....................................................................................................... 5 2.1 Product Information ................................................................................................................ 5 2.2 Objective ................................................................................................................................ 6 2.3 Test Standards and Results .................................................................................................... 6 2.4 Environmental Conditions ....................................................................................................... 6 2.5 MEASUREMENT UNCERTAINTY ......................................................................................... 6 3. TEST FACILITY ........................................................................................................................ 7 3.1TEST FACILITY ....................................................................................................................... 7 3.2 Test Conditions ....................................................................................................................... 7 3.3 Channel List ........................................................................................................................... 8 3.4 Description of Test Modes ...................................................................................................... 8 3.5 Table of Parameters of Text Software Setting ......................................................................... 9 3.6 FCC PART 15.205 RESTRICTED BANDS OF OPERATIONS ............................................. 10 4. SETUP OF EQUIPMENT UNDER TEST................................................................................. 11 4.1 SUPPORT EQUIPMENT ....................................................................................................... 11 4.2 TEST EQUIPMENT LIST ...................................................................................................... 12 5. 47 CFR Part 15C 15.249 Requirements ................................................................................. 13 5.1 Spurious Emission Test ........................................................................................................ 13 5.1.1 Requirement ...................................................................................................................... 13 5.1.2 Test Description ................................................................................................................. 14 5.1.3 Test Description ................................................................................................................. 15 5.1.5 Test Result ..................................................................................................................... 16 5.2 Band Edge ............................................................................................................................ 28 5.2.1 Requirement ...................................................................................................................... 28 5.2.2 Test Description ................................................................................................................. 28 5.2.3Test Result .......................................................................................................................... 28 5.3 LINE CONDUCTED EMISSION TEST ................................................................................. 41 5.3.1. LIMITS OF LINE CONDUCTED EMISSION TEST........................................................... 41 5.3.2. BLOCK DIAGRAM OF TEST SETUP ............................................................................... 41 5.3.3. PRELIMINARY PROCEDURE OF LINE CONDUCTED EMISSION TEST ...................... 42 5.3.4. FINAL PROCEDURE OF LINE CONDUCTED EMISSION TEST .................................... 42 5.3.5. Test result ......................................................................................................................... 42 5.3.5. TEST RESULT OF LINE CONDUCTED EMISSION TEST .............................................. 42 5.4 20 dB Bandwidth .................................................................................................................. 45 5.4.1 Definition ........................................................................................................................... 45 FCC ID: 2AD3J-MINICLUTCH Report No.: MTE/SAL/A15010137 Page 3 of 53 5.4.2 Block Diagram Of Test Setup ............................................................................................ 45 5.4.3 Test Result .............................................................…

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Model No.: SA-MC01 CE TEST SETUP RE TEST SETUP Model No.: SA-MC01 CONDUCTED TEST SETUP