2AGBT-ER-M2801Bluetooth MP4

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 E-Ran Technology Co., Ltd 2015-11-06 To: SIEMIC, INC. 775 Montague Expressway, Milpitas, CA 95035 USA Dear Sir/Madam, Re: Product Certification Representative Authorization Letter We, _____ Shenzhen E-Ran Technology Co., Ltd _____hereby authorize SIEMIC, Inc. to act as a Certification Body for certifying for the following project(s): (Bluetooth MP4: ER-M2801) FCC ID: 2AGBT-ER-M2801 Sincerely, Client’s signature Client’s name / title: ShiSheng Tan/ Engineer Contact information / address 6 Floor, Block 9A, Xiangjiang lndustrial Park, Songbai Road, Shiyan Town, Baoan District, Shenzhen, China

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 E-Ran Technology Co., Ltd 2015-11-06 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Subject: Permanent Confidentiality Request for FCC ID: 2AGBT-ER-M2801 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 ShiSheng Tan/ Engineer Contact information / address 6 Floor, Block 9A, Xiangjiang lndustrial Park, Songbai Road, Shiyan Town, Baoan District, Shenzhen, China

Shenzhen E-Ran Technology Co., Ltd 2015-11-06 To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD FCC ID: 2AGBT- ER-M2801 To Whom It May Concern: This letter is to ascertain that Shenzhen E-Ran Technology Co., Ltd Product Bluetooth MP4 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 : ShiSheng Tan/ Engineer

Report No.: TB-FCC145712 Page: 3 of 10 TB-RF-075-1.0 Appendix III EUT External Photographs Photo 1 Appearance of EUT Photo 2 Appearance of EUT Report No.: TB-FCC145712 Page: 4 of 10 TB-RF-075-1.0 Photo 3 Appearance of EUT Photo 4 Appearance of EUT

Report No.: TB-FCC145712 Page: 2 of 9 TB-RF-075-1.0 Appendix II ID Label Location ID LOCATION

Report No.: TB-FCC145712 Page: 4 of 9 TB-RF-075-1.0 Appendix IV EUT Internal Photographs Photo 3 Internal of EUT Photo 4 Internal of EUT Report No.: TB-FCC145712 Page: 5 of 9 TB-RF-075-1.0 Photo 5 Appearance of PCB Photo 6 Appearance of PCB Report No.: TB-FCC145712 Page: 6 of 9 TB-RF-075-1.0 Photo 7 Appearance of PCB Photo 8 Appearance of PCB 2.4G PCB Antenna Report No.: TB-FCC145712 Page: 7 of 9 TB-RF-075-1.0 Photo 9 Appearance of PCB

Shenzhen Toby Technology Co., Ltd. Report No.: TB-MPE145713 Page: 1 of 2 TB-RF-074-1.0 1A/F., Bldg.6, Yusheng Industrial Zone, The National Road No.107 Xixiang Section 467, Xixiang, Bao’an, Shenzhen, China Tel: +86 75526509301 Fax: +86 75526509195 RF Exposure Evaluation FCC ID: 2AGBT-ER-M2801 1. Client Information Applicant : Shenzhen E-Ran Technology Co., Ltd Address : 6 Floor, Block 9A, Xiangjiang lndustrial Park, Songbai Road, Shiyan Town, Baoan District, Shenzhen, China Manufacturer : Shenzhen E-Ran Technology Co., Ltd Address : 6 Floor, Block 9A, Xiangjiang lndustrial Park, Songbai Road, Shiyan Town, Baoan District, Shenzhen, China 2. General Description of EUT EUT Name : Bluetooth MP4 Models No. : ER-M2801 Model difference : N/A Product Description : Operation Frequency: Bluetooth:2402~2480MHz Number of Channel: Bluetooth:79 Channels Max Peak Output Power: Bluetooth: -5.17 dBm(8-DPSK) Antenna Gain: 0 dBi PCB Antenna Modulation Type: GFSK (1 Mbps) π/4-DQPSK(2 Mbps) 8-DPSK(3 Mbps) Power Supply : DC Voltage supplied from Host System by USB cable. DC power by Li-ion Battery. Power Rating : DC 5.0V by USB cable. DC 3.7V 300mAh Li-ion Battery. Connecting I/O Port(S) : Please refer to the User's Manual Note: More test information about the EUT please refer the RF Test Report. Report No.: TB-MPE145713 Page: 2 of 2 TB-RF-074-1.0 SAR Test Exclusion Calculations 1. FCC: According to KDB 447498 D01 Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies v05r02. (1) Clause 4.3: General SAR test reduction and exclusion guidance Sub clause 4.31: Standalone SAR test exclusion considerations 1) The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6GHz at test separation distance≤5 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation, mm)]*[√f (GHz) ] ≤3.0 for 1-g SAR [(max. power of channel, including tune-up tolerance, mW)/(min. test separation, mm)]*[√f (GHz) ] ≤7.5.0 for 10-g SAR 2. Calculation: Test separation: 5mm Bluetooth Mode (GFSK) Frequency (GHz) Conducted Power (dBm) Turn-up Power Tolerance (dB) Max power of tune up tolerance (mw) Calculation Value Threshold Value 2.402 -5.50 ±0.5 0.316 0.098 3.0 2.441 -5.33 ±0.5 0.329 0.103 3.0 2.480 -5.33 ±0.5 0.329 0.104 3.0 Bluetooth Mode (π/4-DQPSK) Frequency (GHz) Conducted Power (dBm) Turn-up Power Tolerance (dB) Max power of tune up tolerance (mw) Calculation Value Threshold Value 2.402 -5.77 ±0.5 0.297 0.092 3.0 2.441 -5.56 ±0.5 0.312 0.097 3.0 2.480 -5.60 ±0.5 0.309 0.097 3.0 Bluetooth Mode (8-DPSK) Frequency (GHz) Conducted Power (dBm) Turn-up Power Tolerance (dB) Max power of tune up tolerance (mw) Calculation Value Threshold Value 2.402 -5.40 ±0.5 0.324 0.100 3.0 2.441 -5.17 ±0.5 0.341 0.107 3.0 2.480 -5.22 ±0.5 0.337 0.106 3.0 So standalone SAR measurements are not required.

Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC145712 Page: 1 of 94 TB-RF-074-1.0 1A/F., Bldg.6, Yusheng Industrial Zone, The National Road No.107 Xixiang Section 467, Xixiang, Bao’an, Shenzhen, China Tel: +86 75526509301 Fax: +86 75526509195 FCC Radio Test Report FCC ID: 2AGBT-ER-M2801 Original Grant Report No. : TB-FCC145712 Applicant : Shenzhen E-Ran Technology Co., Ltd Equipment Under Test (EUT) EUT Name : Bluetooth MP4 Model No. : ER-M2801 Series Model No. : N/A Brand Name : N/A Receipt Date : 2015-10-15 Test Date : 2015-10-15 to 2015-11-05 Issue Date : 2015-11-06 Standards : FCC Part 15: 2015, Subpart C(15.247) Test Method : ANSI C63.10: 2013 Conclusions : PASS In the configuration tested, the EUT complied with the standards specified above, The EUT technically complies with the FCC requirements Test/Witness Engineer : Approved& Authorized : This report details the results of the testing carried out on one sample. The results contained in this test report do not relate to other samples of the same product. The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in the report. Report No.: TB-FCC145712 Page: 2 of 94 TB-RF-074-1.0 Contents CONTENTS ............................................................................................................................................. 2 1. GENERAL INFORMATION ABOUT EUT ............................................................................. 4 1.1 Client Information ................................................................................................................. 4 1.2 General Description of EUT (Equipment Under Test) ................................................... 4 1.3 Block Diagram Showing the Configuration of System Tested ...................................... 6 1.4 Description of Support Units .............................................................................................. 6 1.5 Description of Test Mode .................................................................................................... 7 1.6 Description of Test Software Setting ................................................................................ 7 1.7 Measurement Uncertainty .................................................................................................. 8 1.8 Test Facility ........................................................................................................................... 9 2. TEST SUMMARY ..................................................................................................................... 10 3. TEST EQUIPMENT .................................................................................................................. 11 4. CONDUCTED EMISSION TEST ........................................................................................... 12 4.1 Test Standard and Limit .................................................................................................... 12 4.2 Test Setup ........................................................................................................................... 12 4.3 Test Procedure ................................................................................................................... 12 4.4 EUT Operating Mode ........................................................................................................ 13 4.5 Test Data ............................................................................................................................. 13 5. RADIATED EMISSION TEST ................................................................................................ 18 5.1 Test Standard and Limit .................................................................................................... 18 5.2 Test Setup ........................................................................................................................... 19 5.3 Test Procedure ................................................................................................................... 20 5.4 EUT Operating Condition ................................................................................................. 20 6. RESTRICTED BANDS REQUIREMENT ............................................................................. 39 6.1 Test Standard and Limit .................................................................................................... 39 6.2 Test Setup ........................................................................................................................... 39 6.3 Test Procedure ................................................................................................................... 39 6.4 EUT Operating Condition ................................................................................................. 40 6.4 Test Data ............................................................................................................................. 40 7. NUMBER OF HOPPING CHANNEL .................................................................................... 53 7.1 Test Standard and Limit .................................................................................................... 53 7.2 Test Setup ........................................................................................................................... 53 7.3 Test Procedure ................................................................................................................... 53 7.4 EUT Operating Condition ................................................................................................. 53 7.5 Test Data ............................................................................................................................. 53 8. AVERAGE TIME OF OCCUPANCY ..................................................................................... 55 8.1 Test Standard and Limit ..…

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Report No.: TB-FCC145712 Page: 8 of 9 TB-RF-075-1.0 Appendix V EUT Test Photographs 15C Test Setup Photo of Setup for Radiated Emission (Above 1 GHz) Photo of Setup for Radiated Emission (Below 1 GHz) Report No.: TB-FCC145712 Page: 9 of 9 TB-RF-075-1.0 Photo of Setup for Conducted Emission