2ALCF-XO-9946AirVibes Pro Earbuds

(at the bottom) V40059W Pro The LED Indicator lights of 2 earbuds will flash blue slowly. AirVibes Pro. FCC ID: 2ALCF-XO-9946 (If both earphones do not paired together after 10 seconds, put them back into the charging case, then take them out to let them pair with each other again ) 2-5 Seconds Ear Tip LED Indicator Light & Microphone 2-3 (When the earphones are not in the charging box) (When the earphones are in the charging box just take Once your earphones are powered on, the LED indicator lights will alternately flash red and blue. After approximately 2-5 seconds, one of the earphone LED indicator lights will flash blue while the other earphone indicator lights will alternately flash red and blue. This means both earphones are paired together. Choose the Ear tip that is most comfortable for you AirVibes pro AirVibes Pro Earbuds AirVibes Pro Earbuds

Dongguan Xing Yue Electronic co., Ltd #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan City, Guang Dong, China Statement Product: AirVibes Pro Earbuds Model: V40059W Additional Model: XO-9946, OE-EP001, XO-9946-2 Trademark: N/A We hereby state that All models above are identical in interior structure, electrical circuits and components, and just model names are different for the marketing requirement. Your assistance on this matter is highly appreciated. Yours sincerely, Signature: Date: 2020/06/29 Name: Sunny zhang Company Name : Dongguan Xing Yue Electronic co., Ltd Address: #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan City, Guang Dong, China Tel / Fax: 0769-81022708/0769-83345348 E-Mail: [email protected]

Dongguan Xing Yue Electronic co., Ltd HEADQUARTERS: 914 WEST PATAPSCO AVENUE • BALTIMORE, MARYLAND 21230 • PHONE (410) 354-3300 • FAX (410) 354-3313 Agent Authorization Letter (2020-06-29) Eurofins MET Labs 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Shenzhen Tongce Testing Lab) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Name: Sunny zhang Date: 2020.06.29 Title: N/A

Dongguan Xing Yue Electronic co., Ltd HEADQUARTERS: 914 WEST PATAPSCO AVENUE • BALTIMORE, MARYLAND 21230 • PHONE (410) 354-3300 • FAX (410) 354-3313 Long Term Confidentiality Request Letter (2020-06-29) Eurofins MET Labs 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (AirVibes Pro Earbuds / V40059W, XO-9946, OE-EP001, XO-9946-2/ FCC ID: 2ALCF-XO-9946) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the  Schematic Diagram  Block Diagram  Operational Description required to be submitted with this application be permanently withheld from public review. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Please contact me if there is any information you may need. Sincerely, Name: Sunny zhang Date: 2020.06.29 Title: N/A

Page 1 of 3 Appendix B: Photographs of EUT Product: AirVibes Pro Earbuds Model: V40059W External Photos Page 2 of 3 Page 3 of 3

Label Artwork and Location Model: V40059W Label: Size: L*W=25*8mm FCC ID: 2ALCF-XO-9946 Location

Page 1 of 3 Appendix B: Photographs of EUT Product: AirVibes Pro Earbuds Model: V40059W Internal Photos Antenna Page 2 of 3 Page 3 of 3

RF exposure evaluation FCC ID: 2ALCF-XO-9946 §2.1093 Radiofrequency radiation exposure evaluation: Portable Devices. According to§15.247(i) and§1.1307b(1), 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 of the commission’s guidance. The 1-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, where  f(GHz) is the RF channel transmit frequency in GHz  Power and distance are rounded to the nearest mW and mm before calculation  When the minimum test separation distance is < 5 mm, a distance of 5 mm according is applied to determine SAR test exclusion.  The result is rounded to one decimal place for comparison  Channel Frequency (GHz) Max. Power (dBm) Tune up Power (dBm) Max. Tune up Power (dBm) Max. Tune up Power (mW) Test distance (mm) Result exclusion thresholds for 1-g SAR CH 00 2.402 3.00 3±1 4 2.51 5 0.78 3.0 Result: Base on the calculation value, No SAR measurement is required.

Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID: 2ALCF-XO-9946 Product: AirVibes Pro Earbuds Model No.: V40059W Additional Model No.: XO-9946, OE-EP001, XO-9946-2 Trade Mark: N/A Report No.: TCT200611E009 Issued Date: Jun. 18, 2020 Issued for : Dongguan Xing Yue Electronic co., Ltd #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan City, Guang Dong, China Issued By: Shenzhen Tongce Testing Lab. 1B/F., Building 1, Yibaolai Industrial Park, Qiaotou, Fuyong, Baoan District, Shenzhen, Guangdong, China TEL: +86-755-27673339 FAX: +86-755-27673332 Note: This report shall not be reproduced except in full, without the written approval of Shenzhen Tongce Testing Lab. This document may be altered or revised by Shenzhen Tongce Testing Lab. personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample. Report No.: TCT200611E009 Page 2 of 56 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TABLE OF CONTENTS 1. Test Certification ................................................................................................... 3 2. Test Result Summary ........................................................................................... 4 3. EUT Description .................................................................................................... 5 4. General Information ............................................................................................. 6 4.1. Test environment and mode ........................................................................................... 6 4.2. Description of Support Units .......................................................................................... 6 5. Facilities and Accreditations ............................................................................. 7 5.1. Facilities...............................................................................................................................7 5.2. Location................................................................................................................................7 5.3. Measurement Uncertainty...............................................................................................7 6. Test Results and Measurement Data .............................................................. 8 6.1. Antenna requirement ........................................................................................................ 8 6.2. Conducted Emission ......................................................................................................... 9 6.3. Conducted Output Power .............................................................................................. 13 6.4. 20dB Occupy Bandwidth ............................................................................................... 17 6.5. Carrier Frequencies Separation .................................................................................. 21 6.6. Hopping Channel Number ............................................................................................. 25 6.7. Dwell Time ......................................................................................................................... 28 6.8. Pseudorandom Frequency Hopping Sequence ...................................................... 32 6.9. Conducted Band Edge Measurement ........................................................................ 33 6.10. Conducted Spurious Emission Measurement ....................................................... 36 6.11. Radiated Spurious Emission Measurement ........................................................... 39 Appendix A: Photographs of Test Setup Appendix B: Photographs of EUT Report No.: TCT200611E009 Page 3 of 56 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1. Test Certification Product: AirVibes Pro Earbuds Model No.: V40059W Additional Model No.: XO-9946, OE-EP001, XO-9946-2 Trade Mark: N/A Applicant: Dongguan Xing Yue Electronic co., Ltd Address: #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan City, Guang Dong, China Manufacturer: Dongguan Xing Yue Electronic co., Ltd Address: #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan City, Guang Dong, China Date of Test: Jun. 12, 2020 – Jun. 17, 2020 Applicable Standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 FCC KDB 558074 D01 15.247 Meas Guidance v05r02 ANSI C63.10:2013 The above equipment has been tested by Shenzhen Tongce Testing Lab. and found compliance with the requirements set forth in the technical standards mentioned above. The results of testing in this report apply only to the product/system, which was tested. Other similar equipment will not necessarily produce the same results due to production tolerance and measurement uncertainties. Tested By:Date:Jun. 17, 2020 Rleo Reviewed By:Date:Jun. 18, 2020 Beryl Zhao Approved By: Date:Jun. 18, 2020 Tomsin Report No.: TCT200611E009 Page 4 of 56 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 2. Test Result Summary RequirementCFR 47 SectionResult Antenna Requirement§15.203/§15.247 (c)PASS AC Power Line Conducted Emission §15.207PASS Conducted Peak Output Power §15.247 (b)(1)PASS 20dB Occupied Bandwidth§15.247 (a)(1)PASS Carrier Frequencies Separation §15.247 (a)(1)PASS Hopping Channel Number§15.247 (a)(1)PASS Dwell Time§15.247 (a)(1)PASS Radiated Emission§15.205/§15.209PASS Band Edge§15.247(d)PASS Note: 1. PASS: Test item meets the requirement. 2. Fail: Test item does not meet the requirement. 3. N/A: Test case does not apply to the test object. 4. The test result judgment is decided by the limit of test standard. Report No.: TCT200611E009 Page 5 of 56 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 3. EUT Description Product: AirV…

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Page 1 of 2 Appendix A: Photographs of Test Setup Product: AirVibes Pro Earbuds Model: V40059W Radiated Emission Page 2 of 2 Conducted Emission