2402-2480MHz 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. Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

Cover Letter(s)

GuangZhou LIWEI Electronics, LTD NO.33 Zhenzhong North Rd., ShenShan Ind. Park, BaiYun District, GuangZhou, GuangDong,510005,China TEL:+86‐020‐86062626 FAX: +86‐020‐86062626 Jan.19,2016 Federal Communication Commission Authorization and Evaluation Division FCC ID: VO8CI3 Re: Confidentiality Request Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, the applicant hereby requests confidential treatment of information applied this application as outlined below: 1: Block Diagram 2: Circuit Diagram 3: Parts List 4.Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the applicant and provide unjustified benefits to its competitors. The Applicant understands that pursuant to Rules 0.457, disclosure of this Application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, GuangZhou LIWEI Electronics, LTD Contact person: Jiawei Yang Title: Manager

Cover Letter(s)

GuangZhou LIWEI Electronics, LTD NO.33 Zhenzhong North Rd., ShenShan Ind. Park, BaiYun District, GuangZhou, GuangDong,510005,China TEL:+86-020-86062626 FAX: +86-020-86062626 Jan.19, 2016 Federal Communication Commission Authorization and Evaluation Division Subject: Explanation of differences between product types FCC ID : VO8CI3 Model Number: Ci3, Ti3, CB3, AO, UI, Vinyl‐I, Vinyl‐B, M2 To Whom It May Concern: We, GuangZhou LIWEI Electronics, LTD, hereby declare that the model : Ti3, CB3, AO, UI, Vinyl-I, Vinyl-B, M2 is identical with the model : Ci3, except the model name and appearance color. Except for the different above, no other modification is performed. Sincerely, GuangZhou LIWEI Electronics, LTD Signature: GuangZhou LIWEI Electronics, LTD Contact person: Jiawei Yang Title: Manager

Test Report

Page 1 of 51 FCC Test Report Report No.: AGC00590151201FE03 FCC ID : VO8CI3 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : Bluetooth headset BRAND NAME : Bluedio MODEL NAME : Ci3, Ti3, CB3, AO, UI, Vinyl‐I, Vinyl‐B, M2 CLIENT : Guangzhou Liwei Electronics Co., Ltd. DATE OF ISSUE : Jan.18,2016 STANDARD(S) TEST PROCEDURE(S) : FCC Part 15 Rules REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd CAUTION: This report shall not be reproduced except in full without the written permission of the test laboratory and shall not be quoted out of context. Report No.: AGC00590151201FE03 Page 2 of 51 Report Revise Record Report Version Revise Time Issued Date Valid VersionNotes V1.0 / Jan.18,2016 Valid Original Report Report No.: AGC00590151201FE03 Page 3 of 51 TABLE OF CONTENTS 1. VERIFICATION OF CONFORMITY ...................................................................................... 4 2. GENERAL INFORMATION .................................................................................................. 5 2.1. PRODUCT DESCRIPTION ........................................................................................................... 5 2.2. TABLE OF CARRIER FREQUENCYS .......................................................................................... 5 3. MEASUREMENT UNCERTAINTY........................................................................................ 6 4. DESCRIPTION OF TEST MODES ........................................................................................ 6 5. SYSTEM TEST CONFIGURATION ...................................................................................... 8 5.1. CONFIGURATION OF EUT SYSTEM .......................................................................................... 8 5.2. EQUIPMENT USED IN EUT SYSTEM ......................................................................................... 8 5.3. SUMMARY OF TEST RESULTS .................................................................................................. 8 6. TEST FACILITY .................................................................................................................... 9 7. ALL TEST EQUIPMENT LIST .............................................................................................. 9 8. RADIATED EMISSION ....................................................................................................... 11 8.1TEST LIMIT ................................................................................................................................... 11 8.2. MEASUREMENT PROCEDURE ................................................................................................ 12 8.3. TEST SETUP .............................................................................................................................. 14 8.4. TEST RESULT ............................................................................................................................ 16 9. BAND EDGE EMISSION .................................................................................................... 29 9.1. MEASUREMENT PROCEDURE ................................................................................................ 29 9.2 TEST SETUP ............................................................................................................................... 29 9.3 RADIATED TEST RESULT .......................................................................................................... 30 10. 20DB BANDWIDTH .......................................................................................................... 34 10.1. MEASUREMENT PROCEDURE .............................................................................................. 34 10.2. TEST SET-UP ........................................................................................................................... 34 10.3. LIMITS AND MEASUREMENT RESULTS ................................................................................ 34 11. FCC LINE CONDUCTED EMISSION TEST ..................................................................... 41 11.1. LIMITS OF LINE CONDUCTED EMISSION TEST ................................................................... 41 11.2. BLOCK DIAGRAM OF LINE CONDUCTED EMISSION TEST ................................................. 41 11.3. PRELIMINARY PROCEDURE OF LINE CONDUCTED EMISSION TEST .............................. 42 11.4. FINAL PROCEDURE OF LINE CONDUCTED EMISSION TEST ............................................. 42 11.5. TEST RESULT OF LINE CONDUCTED EMISSION TEST ....................................................... 42 APPENDIX A: PHOTOGRAPHS OF TEST SETUP ............................................................... 43 APPENDIX B: PHOTOGRAPHS OF EUT .............................................................................. 44 Report No.: AGC00590151201FE03 Page 4 of 51 1. VERIFICATION OF CONFORMITY Applicant Guangzhou Liwei Electronics Co., Ltd. Address No.33 Zhenzhong North Rd, Shenshan Ind.Park BaiYun District, Guangzhou Guangdong Manufacturer Guangzhou Liwei Electronics Co., Ltd. Address No.33 Zhenzhong North Rd, Shenshan Ind.Park BaiYun District, Guangzhou Guangdong Product Designation Bluetooth headset Brand Name Bluedio Test Model Ci3 Series Model Ti3, CB3, AO, UI, Vinyl-I, Vinyl-B, M2 Difference description All the same except for the model name and appearance color. Date of test Jan.15,2016 to Jan.16,2016 Deviation None Condition of Test Sample Normal Report Template AGCRT-US-BR/RF We hereby certify that: The above equipment was tested by Dongguan Precise Testing Service Co., Ltd. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.4 (2009) and the energy emitted by the sample EUT tested as described in this report is in compliance with radiated emission limits of FCC R…

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Test Setup Photos

APPENDIX IV PHOTOGRAPHS OF TEST SETUP FCC RADIATED EMISSION TEST SETUP