2AMZY2BUDSWireless Earbuds

FCC ID: 2AMZY2BUDS

HandStandsPromo LLC Date: 2020-10-26 To: Federal Communications Commission 7435 Oakland Mills Road Columbia, MD FCC ID: 2AMZY2BUDS To Whom It May Concern: This letter is to ascertain that HANDSTANDS PROMO, LLC. EUT : Wireless Earbuds Model Name : TWSi12 We will apply for FCC SDOC. If you have any question or concerns, pls. contact us. Sincerely, Client’s signature ： Client’s name / title ： Stefan Leimer/Sr. Product Manager Contact information / address: HandStandsPromo LLC /1770 South 5350 West 100 Salt Lake City, Utah 84104

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Label Location: In the User Manual and packaging

FCC ID: 2AMZY2BUDS

Internal photos: Charger Left Antenna Right ---The End--- Antenna

FCC ID: 2AMZY2BUDS Portable device According to §15.247(i) and §1.1307(b)(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 guidelines. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g and 10-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 and ≤ 7.5 for 10-g extremity 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； The result is rounded to one decimal place for comparison； The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. We use 5mm as separation distance to calculate. Maximum measured transmitter power: BR/EDR Transmit Frequency (GHz) Mode Max Conducted Power (dBm) tune up maximum power(dBm) Result calculation 1-g SAR 2.402 GFSK -0.178 0 0.31 3 2.441 GFSK 0.656 1 0.39 3 2.480 GFSK 0.872 1 0.40 3 2.402 PI/4 DQPSK 0.523 1 0.39 3 2.441 PI/4 DQPSK 1.285 2 0.50 3 2.480 PI/4 DQPSK 1.470 2 0.50 3 BLE Transmit Frequency (GHz) Mode Max Conducted Power (dBm) tune up maximum power(dBm) Result calculation 1-g SAR 2.402 GFSK 3.589 4 0.78 3 2.441 GFSK 3.260 4 0.78 3 2.480 GFSK 2.630 3 0.63 3 Conclusion: For the max result : 0.50≤ 3.0 for 1-g SAR extremity SAR, No SAR is required. *** End of Report ***

Report No. ES200731072W02 Page 1 of 53 Ver.1.0 TEST REPORT $二维码$ Product Name : Wireless Earbuds Model Number : TWSi12 FCC ID : 2AMZY2BUDS Prepared for : HandStandsPromo LLC Address : 1770 South 5350 West 100 Salt Lake City, Utah 84104 Prepared by : EMTEK (SHENZHEN) CO., LTD. Address : Building 69, Majialong Industry Zone, Nanshan District, Shenzhen, Guangdong, China Tel: (0755) 26954280 Fax: (0755) 26954282 Report Number : ES200731072W02 Date(s) of Tests : July 31,2020 to October 08,2020 Date of issue : October 09, 2020 Report No. ES200731072W02 Page 2 of 53 Ver.1.0 Table of Contents 1 TEST RESULT CERTIFICATION ............................................................................................................ 3 2 EUT TECHNICAL DESCRIPTION .......................................................................................................... 4 3 SUMMARY OF TEST RESULT ............................................................................................................... 5 4 TEST METHODOLOGY .......................................................................................................................... 6 4.1 GENERAL DESCRIPTION OF APPLIED STANDARDS ....................................................................... 6 4.2 MEASUREMENT EQUIPMENT USED .................................................................................................. 6 4.3 DESCRIPTION OF TEST MODES ........................................................................................................ 7 5 FACILITIES AND ACCREDITATIONS ................................................................................................... 8 5.1 FACILITIES ............................................................................................................................................ 8 5.2 LABORATORY ACCREDITATIONS AND LISTINGS ............................................................................. 8 6 TEST SYSTEM UNCERTAINTY ............................................................................................................. 8 7 SETUP OF EQUIPMENT UNDER TEST ................................................................................................. 9 7.1 RADIO FREQUENCY TEST SETUP 1 .................................................................................................. 9 7.2 RADIO FREQUENCY TEST SETUP 2 .................................................................................................. 9 7.3 CONDUCTED EMISSION TEST SETUP ............................................................................................ 10 7.4 SUPPORT EQUIPMENT ..................................................................................................................... 11 8 FREQUENCY HOPPING SYSTEM REQUIREMENTS ......................................................................... 12 8.1 STANDARD APPLICABLE .......................................................................................................................... 12 8.2 EUT PSEUDORANDOM FREQUENCY HOPPING SEQUENCE ........................................................................ 12 8.3 EQUAL HOPPING FREQUENCY USE ......................................................................................................... 13 8.4 FREQUENCY HOPPING SYSTEM .............................................................................................................. 13 9 TEST REQUIREMENTS ........................................................................................................................ 14 9.1 20DB BANDWIDTH ............................................................................................................................. 14 9.2 CARRIER FREQUENCY SEPARATION ............................................................................................. 18 9.3 NUMBER OF HOPPING FREQUENCIES ........................................................................................... 22 9.4 AVERAGE TIME OF OCCUPANCY (DWELL TIME) ............................................................................ 24 9.5 MAXIMUM PEAK CONDUCTED OUTPUT POWER ........................................................................... 27 9.6 CONDUCTED SUPRIOUS EMISSION ............................................................................................... 31 9.7 RADIATED SPURIOUS EMISSION ..................................................................................................... 38 9.8 CONDUCTED EMISSION TEST ......................................................................................................... 51 9.9 ANTENNA APPLICATION ................................................................................................................... 52 Report No. ES200731072W02 Page 3 of 53 Ver.1.0 1 TEST RESULT CERTIFICATION Applicant : HandStandsPromo LLC Address : 1770 South 5350 West 100 Salt Lake City, Utah 84104 Manufacturer : AMITEC Address : 1706, Rongchao Building A, Haixiu Rd, Baoan District, Shenzhen City, Guangdong Province, China EUT : Wireless Earbuds Model Name : TWSi12 Trademark : 2BUDS Measurement Procedure Used: APPLICABLE STANDARDS STANDARD TEST RESULT FCC 47 CFR Part 2 2018, Subpart J FCC 47 CFR Part 15 2018, Subpart C PASS The above equipment was tested by EMTEK(SHENZHEN) 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 C63.10 (2013) and the energy emitted by the sample EUT tested as described in this report is in compliance with the requirements of FCC Rules Part 2 and Part 15.247. The test results of this report relate only to the tested sample identified in this report. Date of Test : July 31,2020 to October 08,2020 Prepared by : Sewen Guo /Editor Reviewer : Joe Xia/Editor Approve & Authorized Signer : Lisa Wang/Manager Report No. ES200731072W02 Page 4 of 53 Ver.1.0 2 EUT TECHNICAL DESCRIPTION Characteristics D…

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