SXXKTS-04Speaker

Shenzhen KingBoard Technology Co., Ltd. April 20, 2013 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD FCC ID: SXXKTS-04 To Whom It May Concern: This letter is to ascertain that Shenzhen KingBoard Technology Co., Ltd. （Product：Speaker Model name: KTS-04） has been the units used for conducting FCC compliance testing, the DoC part will be tested by FCC recognized test lab. If you have any question or concerns, pls. contact us. Sincerely, Client’s signature: Client’s name / title: Qin Hong Huang/Manager Contact information / address: Bldg. A, Dakanglong Industry Zone, Dabuxiang, Guanlan, Shenzhen, China

Shenzhen KingBoard Technology Co., Ltd. April 20, 2013 To: SIEMIC, INC. 775 Montague Expressway Milpitas , CA 95035 USA Dear Sir/Madam, Re: Project and Product Certification Representative Authorization Letter We , Shenzhen KingBoard Technology Co., Ltd. hereby authorize SIEMIC, INC. to act as a Certification Body for certifying for the following project(s): Product Description: Speaker Model name: KTS-04 FCC ID: SXXKTS-04 We affirm that between SIEMIC and Shenzhen KingBoard Technology Co., Ltd. , any difference in understanding, including test plan, measurement methods, applicable standards and relevant procedures and processes have been resolved prior to commencement of testing activities. Sincerely, Client’s signature: Client’s name / title: Qin Hong Huang/Manager Contact information / address: Bldg. A, Dakanglong Industry Zone, Dabuxiang, Guanlan, Shenzhen, China

SCS-F19: Confidentiality Request Letter Page 1 of 1 Rev 2.0 Shenzhen KingBoard Technology Co., Ltd. April 20, 2013 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Confidentiality Request regarding application for certification of FCC ID: SXXKTS-04 We hereby request confidential treatment of information accompanying this application as outlined below: - Block Diagram - Operational Description - Schematic 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. Client’s signature: Client’s name / title: Qin Hong Huang/Manager Contact information / address: Bldg. A, Dakanglong Industry Zone, Dabuxiang, Guanlan, Shenzhen, China

FCC Certification Label Location Sample Label location

FCC Certification label Sample FCC ID: SXXKTS-04 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.

Antenna Antenna

FCC ID : SXXKTS-04 1. RF EXPOSURE 1.1. The Requirement System operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy levels in excess of the Commission’s guidelines. See Section 15.247(b)(4) and Section 1.1307(b)(1) 1.2. Limit For Maximum Permissible Exposure (MPE) Limits for General Population/ Uncontrolled Exposure F = frequency in MHz, * Plane-wave equivalent power density 1.3. MPE Calculations E(V/m) = 30 P G d  , Power Density: S( 2 mW/cm) = 2 377 E Where E = Electric Field (V/m) P = Peak Output Power (mW) Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) ( 2 mW/cm) Averaging Time 2 E, 2 H or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 f/1500 30 1500-100,000 1.0 30 G = Antenna Numeric Gain (numeric) = 10 x , x = Antenna Gain(dBi) /10 d = Separation Distance (cm) We can change the formula to: S = 2 30 377 PG d   or, d = 30 377 PG S   Because the EUT is belong to general population/uncontrolled exposure. So 1.3.1. We considering the limit of minimum separation distance (d) is 20cm, Maximum Output Power = 0.361 Antenna Gain = 0(dBi) = 1.00(numeric) S = 2 30 377 PG d   = 7.2*10 -5 < 1.0 2 mW/cm (limit) Calculated RF Exposure power density is 7.2*10 -5 2 mW/cm , less than the limit. 1.3.2. We considering the limit of power density (S) is 1.0 2 mW/cm , Maximum Output Power =0.361 Antenna Gain = 0(dBi) =1.00 (numeric) d = 30 377 PG S   = 0.16< 20 cm Calculated RF Exposure separation distance is 0.16 less than the minimum separation distance 1.3.3.FCC Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. In order to avoid the possibility of exceeding the FCC radio frequency exposure limits, Human proximity to the antenna shall not be less than 20cm(8 inches) during normal operation. Proposed RF exposure safety information to include in User’s Manual.

Page 1 of 84 FCC ID: SXXKTS-04 ACCURATE TECHNOLOGY CO. LTD Report No.: ATE20130608 APPLICATION CERTIFICATION On Behalf of Shenzhen KingBoard Technology Co., Ltd. Speaker Model No.: KTS-04 FCC ID: SXXKTS-04 Prepared for : Shenzhen KingBoard Technology Co., Ltd. Address : Bldg. A, Dakanglong Industry Zone, Dabuxiang, Guanlan, Shenzhen, China Prepared by : ACCURATE TECHNOLOGY CO. LTD Address : F1, Bldg. A, Changyuan New Material Port, Keyuan Rd. Science & Industry Park, Nanshan, Shenzhen, Guangdong P.R. China Tel: (0755) 26503290 Fax: (0755) 26503396 Report Number : ATE20130608 Date of Test : April 11-24, 2013 Date of Report : April 24, 2013 Page 2 of 84 FCC ID: SXXKTS-04 ACCURATE TECHNOLOGY CO. LTD Report No.: ATE20130608 TABLE OF CONTENTS Description Page Test Report Certification 1. GENERAL INFORMATION .......................................................................................................... 5 1.1. Description of Device (EUT)....................................................................................................................5 1.2. Special Accessory and Auxiliary Equipment ...........................................................................................5 1.3. Description of Test Facility ......................................................................................................................6 1.4. Measurement Uncertainty.........................................................................................................................6 2. MEASURING DEVICE AND TEST EQUIPMENT ..................................................................... 7 3. OPERATION OF EUT DURING TESTING ................................................................................. 8 3.1. Operating Mode ........................................................................................................................................8 3.2. Configuration and peripherals ..................................................................................................................8 4. TEST PROCEDURES AND RESULTS ......................................................................................... 9 5. 20DB BANDWIDTH TEST............................................................................................................10 5.1. Block Diagram of Test Setup..................................................................................................................10 5.2. The Requirement For Section 15.247(a)(1) ............................................................................................10 5.3. EUT Configuration on Measurement .....................................................................................................10 5.4. Operating Condition of EUT ..................................................................................................................10 5.5. Test Procedure ........................................................................................................................................11 5.6. Test Result ..............................................................................................................................................11 6. CARRIER FREQUENCY SEPARATION TEST........................................................................ 15 6.1. Block Diagram of Test Setup..................................................................................................................15 6.2. The Requirement For Section 15.247(a)(1) ............................................................................................15 6.3. EUT Configuration on Measurement .....................................................................................................15 6.4. Operating Condition of EUT ..................................................................................................................15 6.5. Test Procedure ........................................................................................................................................16 6.6. Test Result ..............................................................................................................................................16 7. NUMBER OF HOPPING FREQUENCY TEST ......................................................................... 20 7.1. Block Diagram of Test Setup..................................................................................................................20 7.2. The Requirement For Section 15.247(a)(1)(iii) ......................................................................................20 7.3. EUT Configuration on Measurement .....................................................................................................20 7.4. Operating Condition of EUT ..................................................................................................................20 7.5. Test Procedure ........................................................................................................................................21 7.6. Test Result ..............................................................................................................................................21 8. DWELL TIME TEST ..................................................................................................................... 24 8.1. Block Diagram of Test Setup..................................................................................................................24 8.2. The Requirement For Section 15.247(a)(1)(iii) ......................................................................................24 8.3. EUT Configuration on Measurement .....................................................................................................24 8.4. Operating Condition of EUT ..................................................................................................................24 8.5. Test Procedure .................…

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Conducted emissions test Radiated emissions test < 30MHz Radiated emissions test 30MHz- 1GHz Radiated emissions test > 1GHz