SDN-B021008BIG JUKEBOX SPEAKER

Tonika Electronics Technology (Shenzhen) Co., Ltd Date: July 22, 2014 To: Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 To Whom It May Concern: The Tonika Electronics Technology (Shenzhen) Co., Ltd., the undersigned, hereby authorizes Mr. Wu Xuewen from Shenzhen Balun Technology Co., Ltd., to act on the behalf of the Tonika Electronics Technology (Shenzhen) Co., Ltd solely in matters relating to the application for an FCC equipment authorization for FCC ID: SDN-B021008 including the signing of documents in connection with this Application. Necessary acts carried out by Shenzhen Balun Technology Co., Ltd. In connection with the Application shall have the same effect as acts of the Tonika Electronics Technology (Shenzhen) Co., Ltd. The Tonika Electronics Technology (Shenzhen) Co., Ltd also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). Yours Sincerely, XIANG DONG President Tonika Electronics Technology (Shenzhen) Co., Ltd

Tonika Electronics Technology (Shenzhen) Co., Ltd. Date: July 22, 2014 To: Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 RE: Tonika Electronics Technology (Shenzhen) Co., Ltd. FCC ID: SDN-B021008 FCC Part 15 Certification Confidentiality Request Gentlemen: This letter is to comply with 47 CFR 0.457 and 0.459 pertaining to confidentiality material. Tonika Electronics Technology (Shenzhen) Co., Ltd. requests that the following documents regarding this submission for FCC ID: SDN-B021008 be kept confidential: Exhibit Type File Name Block Diagram Block Diagram.pdf Schematics Schematics.pdf Operational Description Operational Description.pdf Those documents contain detailed system and equipment description and related information about the product which Tonika Electronics Technology (Shenzhen) Co., Ltd. considers to be confidential proprietary, a custom design and, otherwise, not releasable to the general public. Since this design is a basis form which future technological products will evolve, Tonika Electronics Technology (Shenzhen) Co., Ltd. considers 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. Thank you for your attention to this matter. Yours Sincerely, XIANG DONG President Tonika Electronics Technology (Shenzhen) Co., Ltd.

Report No.: BL-SZ1470032-601 99 ANNEX C EUT PHOTOS C.1 Appearance of the EUT THE FRONT OF EUT (1) Report No.: BL-SZ1470032-601 100 THE FRONT OF EUT (2) Report No.: BL-SZ1470032-601 101 THE DOWN OF EUT THE UP OF EUT Report No.: BL-SZ1470032-601 102 THE LEFT OF EUT THE CHARGER OF EUT

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Report No.: BL-SZ1470032-601 103 C.2 Inside of the EUT EUT UNCOVER VIEW EUT UNCOVER VIEW Report No.: BL-SZ1470032-601 104 EUT UNCOVER VIEW Report No.: BL-SZ1470032-601 105 MAIN BOARD BACK VIEW 1 MAIN BOARD BACK VIEW 2 Report No.: BL-SZ1470032-601 106 MAIN BOARD BACK VIEW 3 MAIN BOARD BACK VIEW 4 Report No.: BL-SZ1470032-601 107 MAIN BOARD BACK VIEW 4 RF MODULE Report No.: BL-SZ1470032-601 108 RF MODULE --END OF REPORT--

RF Exposure Evaluation for SDN-B021008 Refer user manual this device is a Bluetooth Speaker and this device was designed used in mobile devices the minimum distance between human’s body is 20mm. Based on the 47CFR 2.1091, this device belongs to mobile device. The definition of the category as following: Mobile Derives: CFR Title 47 §2.1091(b) (b) For purposes of this section, a mobile device is defined as a transmitting device designed to be used in other than fixed locations and to generally be used in such a way that a separation distance of at least 20 centimeters is normally maintained between the transmitter’s radiating structure(s) and the body of the user or nearby persons. FCC KDB 447498 D01 General RF Exposure Guidance v05r02 Limit Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition, listed below, is satisfied. These test exclusion conditions are based on source-based time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune-up tolerance, and the minimum test separation distance required for the exposure conditions. The minimum test separation distance is determined by the smallest distance from the antenna and radiating structures or outer surface of the device, according to the host form factor, exposure conditions and platform requirements, to any part of the body or extremity of a user or bystander. 1) The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [ (max.power of channel,including tune −up tolerance,mW) (min.test separation distance,mm) ] · [ � f (GHz) ] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR Where • f (GHz) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. FCC exclusion power threshold for distance 50 mm at 2450MHz is 96mw. 2) At 100 MHz to 6 GHz and for test separation distances > 50 mm, the SAR test exclusion threshold is determined according to the following: a) [Power allowed at numeric threshold for 50 mm in step 1) + (test separation distance - 50 mm)·( f (MHz) /150)] mW, at 100 MHz to 1500 MHz b) [Power allowed at numeric threshold for 50 mm in step 1) + (test separation distance - 50 mm)·10] mW at > 1500 MHz and ≤ 6 GHz The FCC exclusion power threshold for distance 200 mm at 2450MHz is: [Power allowed at numeric threshold for 50 mm in step 1) + (test separation distance - 50 mm)·10] mW=96mW+[(200-50)*10]mW=1596mW The Refer RF test report the DUT maximum output power is 1.85mW which is below the FCC exclusion power threshold for distance 200 mm at 2450MHz. RF Exposure Evaluation Result: PASS

Report No.: BL-SZ1470032-601 2 Revision History Version Issue Date Revisions Rev. 01 2014.07.18 Initial Issue TABLE OF CONTENTS 1 ADMINISTRATIVE DATA (GENERAL INFORMATION) .......................................................................... 5 1.1 Identification of the Testing Laboratory .............................................................................................. 5 1.2 Identification of the Responsible Testing Location ............................................................................. 5 1.3 Test Environment Condition ............................................................................................................... 5 1.4 Announce ........................................................................................................................................... 6 2 PRODUCT INFORMATION ...................................................................................................................... 7 2.1 Applicant ............................................................................................................................................ 7 2.2 Manufacturer ...................................................................................................................................... 7 2.3 General Description for Equipment under Test (EUT) ....................................................................... 7 2.4 Technical Information ......................................................................................................................... 7 2.5 Ancillary Equipment ........................................................................................................................... 8 3 SUMMARY OF TEST RESULTS .............................................................................................................. 9 3.1 Test Standards ................................................................................................................................... 9 3.2 Verdict ................................................................................................................................................ 9 4 GENERAL TEST CONFIGURATIONS ................................................................................................... 10 4.1 Test Environments ........................................................................................................................... 10 4.2 Test Equipment List ......................................................................................................................... 10 4.3 Test Configurations .......................................................................................................................... 11 4.4 Description of Test Setup ................................................................................................................. 11 4.4.1 For Antenna Port Test ............................................................................................................... 11 4.4.2 For AC Power Supply Port Test ................................................................................................ 11 4.4.3 For Radiated Test (Below 30MHz) ............................................................................................ 12 4.4.4 For Radiated Test (30MHz-1GHz) ............................................................................................ 12 4.4.5 For Radiated Test (Above 1GHz) .............................................................................................. 13 4.5 Test Conditions ................................................................................................................................ 13 Report No.: BL-SZ1470032-601 3 TEST ITEMS ........................................................................................................................................... 14 5.1 Antenna Requirements .................................................................................................................... 14 5.1.1 Standard Applicable .................................................................................................................. 14 5.1.2 Antenna Anti-Replacement Construction .................................................................................. 14 5.1.3 Antenna Gain ............................................................................................................................ 14 5.2 Number of Hopping Frequency ........................................................................................................ 15 5.2.1 Limit ........................................................................................................................................... 15 5.2.2 Test Procedure .......................................................................................................................... 15 5.3 Peak Output Power .......................................................................................................................... 16 5.3.1 Test Limit ................................................................................................................................... 16 5.3.2 Test Procedure .......................................................................................................................... 16 5.4 Occupied Bandwidth ........................................................................................................................ 17 5.4.1 Limit ........................................................................................................................................... 17 5.4.2 Test Procedure .......................................................................................................................... 17 5.5 Carrier Frequency Separation .......................................................................................................... 18 5.5.1 Limit ...................................…

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Report No.: BL-SZ1470032-601 95 ANNEX B TEST SETUP PHOTOS B.1 Conducted Test Photo Report No.: BL-SZ1470032-601 96 B.2 Radiated Test Photo Below 30MHz Report No.: BL-SZ1470032-601 97 30MHz to 1GHz Report No.: BL-SZ1470032-601 98 Above 1GHz