ESXCSBT25Bluetooth Speaker

SCS-F18: Project and Product Certification Representative Authorization Letter Page 1 of 2 Rev 3.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Project and Product Certification Representative Authorization Letter Revision History Reason for Amendment (current / obsolete) From To Approved Date Initial Release (obsolete) 1.0 1.0 Nov-14-2006 Revised wording (obsolete) 1.0 2.0 Sept–25-2007 Updated company template (current) 2.0 3.0 Jan-31-2012 SCS-F18: Project and Product Certification Representative Authorization Letter Page 2 of 2 Rev 3.0 Guangzhou Panyu Juda Car Audio Equipment CO.,Ltd Vtrek Dewei IndustrialGarden,Shibei Industrial Road,Dashi Town,Panyu Borough,Guangzhou City,Guangdong Province,China. 2013/03/28 To: SIEMIC, INC. 775 Montague Expressway, Milpitas, CA 95035 USA Dear Sir/Madam, Re: Project and Product Certification Representative Authorization Letter We, __ Guangzhou Panyu Juda Car Audio Equipment 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: CSBT25 FCC ID: ESXCSBT25 We affirm that between SIEMIC and ____ Guangzhou Panyu Juda Car Audio Equipment 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 : Liao.Xiaofei/Certification Engineer Contact information / address: Vtrek Dewei IndustrialGarden,Shibei Industrial Road,Dashi Town,Panyu Borough,Guangzhou City,Guangdong Province,China.

SCS-F19: Confidentiality Request Letter Page 1 of 2 Rev 3.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Confidentiality Request Letter Revision History Reason for Amendment (current / obsolete) From To Approved Date 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 (current) 2.0 3.0 Jan-31-2012 SCS-F19: Confidentiality Request Letter Page 2 of 2 Rev 3.0 Guangzhou Panyu Juda Car Audio Equipment CO.,Ltd Vtrek Dewei IndustrialGarden,Shibei Industrial Road,Dashi Town,Panyu Borough,Guangzhou City,Guangdong Province,China. 2013/03/28 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Subject: Permanent Confidentiality Request for FCC ID: ESXCSBT25 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 : Liao.Xiaofei/Certification Engineer Contact information / address: Vtrek Dewei IndustrialGarden,Shibei Industrial Road,Dashi Town,Panyu Borough,Guangzhou City,Guangdong Province,China.

FCC ID: ESXCSBT25 EST Technology Co.,Ltd Report No. ESTE-R1303008 Page 88 of 95 13. PHOTOS OF EUT External Photos M/N:CSBT25 FCC ID: ESXCSBT25 EST Technology Co.,Ltd Report No. ESTE-R1303008 Page 89 of 95 External Photos M/N: CSBT25 FCC ID: ESXCSBT25 EST Technology Co.,Ltd Report No. ESTE-R1303008 Page 90 of 95 External Photos M/N: CSBT25

(COBY CSBT25 ) Bl1606 0.1mmPVC(), (REACHROHS) 50.5 mm 2 3 . 0 m m

(COBY CSBT25 ) Bl1606 0.1mmPVC(), (REACHROHS) 50.5 mm 2 3 . 0 m m

FCC ID: ESXCSBT25 EST Technology Co.,Ltd Report No. ESTE-R1303008 Page 91 of 95 Internal Photos M/N: CSBT25 FCC ID: ESXCSBT25 EST Technology Co.,Ltd Report No. ESTE-R1303008 Page 92 of 95 Internal Photos M/N: CSBT25 Antenna FCC ID: ESXCSBT25 EST Technology Co.,Ltd Report No. ESTE-R1303008 Page 93 of 95 Internal Photos M/N: CSBT25 FCC ID: ESXCSBT25 EST Technology Co.,Ltd Report No. ESTE-R1303008 Page 94 of 95 Internal Photos M/N: CSBT25

FCC ID: ESXCSBT25 EST Technology Co.,Ltd Report No. ESTE-R1303009 Page 1 of 3 Guangzhou Panyu Juda Car Audio Equipment CO.,Ltd Bluetooth Speaker Model Number: CSBT25 FCC ID: ESXCSBT25 Prepared for : Guangzhou Panyu Juda Car Audio Equipment CO.,Ltd Vtrek Dewei Industrial Garden, Shibei Industrial Road, Dashi Town, Panyu Borough, Guangzhou City, Guangdong Province, China. Prepared By : EST Technology Co., Ltd. Santun(guantai Road), Houjie Town, DongGuan City,GuangDong, China. Tel: 86-769-83081888-808 Report Number: ESTE-R1303009 Date of Test : Mar 15, 2013 ~ Mar 19, 2013 Date of Report : Mar 20, 2013 FCC ID: ESXCSBT25 EST Technology Co.,Ltd Report No. ESTE-R1303009 Page 2 of 3 Maximum Permissible Exposure 1、Applicable Standard Systems 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 level in excess limit for maximum permissible exposure. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as a mobile device whereby a distance of 0.2m normally can be maintained between the user and the device. (a)、Limits for Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/cm2) Averaging Times︱E︱ 2 , ︱H︱2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842/f 4.89/f (900/f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-10000 5 6 (b)、Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/cm2) Averaging Times︱E︱ 2 , ︱H︱2 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 1500-10000 1.o 30 Note: f=frequency in MHz; *Plane-wave equivalent power density 2、MPE Calculation Method E (V/m) = (30*P*G) 0.5/d Power Density: Pd (W/m2) = E2/377 E = Electric Field (V/m) P = Peak RF output Power (W) G = EUT Antenna numeric gain (numeric) d = Separation distance between radiator and human body (m) The formula can be changed to Pd = (30*P*G) / (377*d2) From the peak EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the gain of the used antenna, the RF power density can be obtained FCC ID: ESXCSBT25 EST Technology Co.,Ltd Report No. ESTE-R1303009 Page 3 of 3 3、Calculated Result and Limit Antenna gain Model Frequency (MHz) Peak output power (dBm) Peak output power (mW) (dBi) (Linear) Power Density (S) (mW/cm2) Limited of Power Density (S) (mW/cm2) Test Result 2402 1.217 1.3230 1 0.00026 1 Compiles 2441 1.350 1.3640 1 0.00027 1 Compiles GFSK 2480 1.843 1.5280 1 0.00030 1 Compiles 2402 0.472 1.1140 1 0.00022 1 Compiles 2441 0.034 1.0070 1 0.00020 1 Compiles 8-DPSK 2480 0.162 1.0380 1 0.00020 1 Compiles

FCC ID: ESXCSBT25 EST Technology Co.,Ltd Report No. ESTE-R1303008 Page 86 of 95 12. TEST SETUP PHOTO Conducted Test FCC ID: ESXCSBT25 EST Technology Co.,Ltd Report No. ESTE-R1303008 Page 87 of 95 Radiated Test (30-1000 MHz) Radiated Test (1000-25000 MHz)