2ALCFXO-9899tws sport earphones

tws sport earphones XO-9899 XO-9899 XO-9899

Dongguan Xing Yue Electronic co., Ltd #98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan City, Guang Dong, China Statement Product: tws sport earphones Model: XO-9899 Additional Model: V40057W, OE-EP018 Trademark: VIVITAR 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: 2020/04/10 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 2020-04-13 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2ALCFXO-9899 Product Name: tws sport earphones Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential:  Schematics  Block diagram  Operation description  BOM These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. <Signature> Name: Sunny zhang Title: N/A Company: Dongguan Xing Yue Electronic co., Ltd

Dongguan Xing Yue Electronic co., Ltd 2020-04-13 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act asAgent On our behalf, I appoint Shenzhen Tongce Testing Lab. / 1B/F., Building 1, Yibaolai Industrial Park, Qiaotou, Fuyong, Baoan District,Shenzhen, Guangdong, China(Name of Agent company name andaddress) to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonourbehalf,Iack nowledgethatallresponsibilityforcomplyingwiththetermsandconditionsforcertification,stillres ideswith Dongguan Xing Yue Electronic co., Ltd /#98 LiWu Swan Industrial District, Qiao Tou Town, Dong Guan City, Guang Dong, China (Applicant Nameandaddress) <Signature> Name: Sunny zhang Title: N/A Applicant Company: Dongguan Xing Yue Electronic co., Ltd

FCCID:2ALCFXO‐9899 Product:twssportearphones ModelNo.:XO‐9899,V40057W,OE‐EP018 Thedevicehaveleftandrightearphone,leftandright earphoneareelectricallyidentical. Name:Sunnyzhang Title:N/A Company:DongguanXingYueElectronicco.,Ltd

Page 1 of 11 Appendix B: Photographs of EUT Product: tws sport earphones Model: XO-9899 External Photos Page 2 of 11 Page 3 of 11 Page 4 of 11 Page 5 of 11 Left Page 6 of 11 Page 7 of 11 Page 8 of 11 Right Page 9 of 11 Page 10 of 11 Page 11 of 11

Label Artwork and Location Model: XO-9899 Label: Size: L*W=35*18mm Location

Page 1 of 5 Appendix B: Photographs of EUT Product: tws sport earphones Model: XO-9899 Internal Photos Left Antenna Page 2 of 5 Page 3 of 5 Right Page 4 of 5 Page 5 of 5

RF exposure evaluation §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 78 2.480 4.16 3.5±1 4.5 2.82 5 0.89 3.0 Result: Base on the calculation value, No SAR measurement is required.

Report No.: TCT191231E008 Page 51 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Highest channel 2480: Horizontal: Vertical: Frequency (MHz) Ant. Pol. H/V Peak (dBμV/m) Duty cycle factor (dB/m) AV (dBμV/m) Peak limit (dBμV/m) AV limit (dBμV/m) PK Margin (dB) AVG Margin (dB) 2483.5 H 46.85 -1.95 44.90 74 54 -27.15 -9.10 2483.5 V 43.19 -1.95 41.24 74 54 -30.81 -12.76 Note: Measurements were conducted in all two modulation (GFSK, Pi/4DQPSK), and the worst case Mode (Pi/4DQPSK) was submitted only. Report No.: TCT191231E008 Page 52 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Above 1GHz Modulation Type: Pi/4DQPSK Low channel: 2402 MHz Frequency (MHz) Ant. Pol. H/V Peak reading (dBμV) AV reading (dBuV) Correction Factor (dB/m) Emission Level Peak limit (dBμV/m) AV limit (dBμV/m) Margin (dB) Peak (dBμV/m) AV (dBμV/m) 4804 H 45.27 --- 0.66 45.93 --- 74 54 -8.07 7206 H 35.51 --- 9.50 45.01 --- 74 54 -8.99 --- H --- --- --- --- --- --- --- --- 4804 V 44.62 --- 0.66 45.28 --- 74 54 -8.72 7206 V 35.08 --- 9.50 44.58 --- 74 54 -9.42 --- V --- --- --- --- --- --- --- --- Middle channel: 2441 MHz Frequency (MHz) Ant. Pol. H/V Peak reading (dBμV) AV reading (dBμV) Correction Factor (dB/m) Emission Level Peak limit (dBμV/m) AV limit (dBμV/m) Margin (dB) Peak (dBμV/m) AV (dBμV/m) 4882 H 43.96 --- 0.99 44.95 --- 74 54 -9.05 7323 H 34.12 --- 9.87 43.99 --- 74 54 -10.01 --- H --- --- --- --- --- --- --- --- 4882 V 44.58 --- 0.99 45.57 --- 74 54 -8.43 7323 V 35.36 --- 9.87 45.23 --- 74 54 -8.77 --- V --- --- --- --- ---- --- --- --- High channel: 2480 MHz Frequency (MHz) Ant. Pol. H/V Peak reading (dBμV) AV reading (dBμV) Correction Factor (dB/m) Emission Level Peak limit (dBμV/m) AV limit (dBμV/m) Margin (dB) Peak (dBμV/m) AV (dBμV/m) 4960 H 46.74 --- 1.33 48.07 --- 74 54 -5.93 7440 H 37.31 --- 10.22 47.53 --- 74 54 -6.47 --- H --- --- --- --- --- --- --- --- 4960 V 47.85 --- 1.33 49.18 --- 74 54 -4.82 7440 V 37.44 --- 10.22 47.66 --- 74 54 -6.34 --- V --- --- --- --- --- --- --- --- Note: 1. Emission Level=Peak Reading + Correction Factor; Correction Factor= Antenna Factor + Cable loss – Pre-amplifier 2. Margin (dB) = Emission Level (Peak) (dBμV/m)-Average limit (dBμV/m) 3. The emission levels of other frequencies are very lower than the limit and not show in test report. 4. Measurements were conducted from 1 GHz to the 10th harmonic of highest fundamental frequency. 5. Data of measurement shown “---“in the above table mean that the reading of emissions is attenuated more than 20 dB below the limits or the field strength is too small to be measured. 6. Measurements were conducted in all two modulation (GFSK, Pi/4DQPSK), and the worst case Mode (Pi/4DQPSK) was submitted only. 7. All the restriction bands are compliance with the limit of 15.209. Report No.: TCT191231E008 Page 53 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Appendix A: Photographs of Test Setup Product: tws sport earphones Model: XO-9899 Radiated Emission Left Report No.: TCT191231E008 Page 54 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Conducted Emission Report No.: TCT191231E008 Page 55 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Appendix B: Photographs of EUT Product: tws sport earphones Model: XO-9899 External Photos Report No.: TCT191231E008 Page 56 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT191231E008 Page 57 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT191231E008 Page 58 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT191231E008 Page 59 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Left Report No.: TCT191231E008 Page 60 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT191231E008 Page 61 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT191231E008 Page 62 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Right Report No.: TCT191231E008 Page 63 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT191231E008 Page 64 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT191231E008 Page 65 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT191231E008 Page 66 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Product: tws sport earphones Model: XO-9899 Internal Photos Left Report No.: TCT191231E008 Page 67 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT191231E008 Page 68 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Right Report No.: TCT191231E008 Page 69 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Report No.: TCT191231E008 Page 70 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com *****END OF REPORT*****

Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID: 2ALCFXO-9899 Product: tws sport earphones Model No.: XO-9899 Additional Model No.: V40057W, OE-EP018 Trade Mark: VIVITAR Report No.: TCT191231E008 Issued Date: Apr. 09, 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.: TCT191231E008 Page 2 of 70 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 ................................................................................... 15 6.4. 20dB Occupy Bandwidth .................................................................................... 19 6.5. Carrier Frequencies Separation ......................................................................... 23 6.6. Hopping Channel Number .................................................................................. 27 6.7. Dwell Time ............................................................................................................ 30 6.8. Pseudorandom Frequency Hopping Sequence ................................................ 34 6.9. Conducted Band Edge Measurement ................................................................ 35 6.10. Conducted Spurious Emission Measurement ................................................. 38 6.11. Radiated Spurious Emission Measurement .................................................... 41 Appendix A: Photographs of Test Setup Appendix B: Photographs of EUT Report No.: TCT191231E008 Page 3 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1. Test Certification Product: tws sport earphones Model No.: XO-9899 Additional Model No.: V40057W, OE-EP018 Trade Mark: VIVITAR 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: Jan. 02, 2020 – Apr. 08, 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: Apr. 08, 2020 Kevin Huang Reviewed By: Date: Apr. 09, 2020 Beryl Zhao Approved By: Date: Apr. 09, 2020 Tomsin Report No.: TCT191231E008 Page 4 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 2. Test Result Summary Requirement CFR 47 Section Result Antenna Requirement §15.203/§15.247 (c) PASS AC Power Line Conducted Emission §15.207 PASS 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/§15.209 PASS 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.: TCT191231E008 Page 5 of 70 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 3. EUT Description Product: tws sport earphones Model No.: XO-9899 Additional Model No.: V40057W, OE-EP018 Trade Mark: VIVITAR Bluetooth Version: V5.0 Operation Frequency: 2402MHz~2480MHz Transfer Rate: 1/2 Mbits/s Number of Channel: 79 Modulation Type…

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Page 1 of 2 Appendix A: Photographs of Test Setup Product: tws sport earphones Model: XO-9899 Radiated Emission Left Page 2 of 2 Conducted Emission