2AC9N1683623TWS EARBUDS

FCC Warning:T his equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruct ions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna.• Increase the separation bet ween the equipment and receiver. • Connect the equipment into an out let on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Caution: Any changes or modificat ions to this device not explicitly approved by manufacturer could void your authority to operate this equipment.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. FCC-ID:2AC9N1683623 Model:1683623-05

External Photos of EUT

FCC-ID Label Information 1. Label location: 2.FCC ID Label: 2AC9N1683623 FCC-ID Label Location FCC-ID Label Location left ear right ear

Internal Photos of EUT Antenna

version01 Cotton On USA Inc 16511, Trojan Way, La Miranda, California 90638, United States Tel: +61 3 5277-666 Fax: N/A Declaration concerning Antenna Specification It is hereby declared that the product Model No.: 1683623-05, 1683623-01, 1683623-02, 1683623-03 1683623-04, 1683623-06, 1683623-07, 1683623-08, 1683623-09, 1683623-10 FCC ID: 2AC9N1683623 fulfills the requirement in FCC test relating to the antenna type. The device specified above confirms to the FCC recommendations for internal antenna type(s) described below: Model No. of antenna: 1683623-05 Type of antenna: Ceramic Antenna Gain of the antenna: 2.71 dBi Frequency range: 2402-2480 MHz The mounting of the antenna is fixed to the radio module and no other antenna should be used. Company name: Cotton On USA Inc Address: 16511, Trojan Way, La Miranda, California 90638, United States City: La Miranda ZIP / Postal code: 90638 Country: States Place: La Miranda Date: 2020-6-12 Signature:

RF Exposure Letter According to 447498 D01 General RF Exposure Guidance v05 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 GHzPower and distance are rounded to the nearest mW and mm before calculationThe result is rounded to one decimal place for comparison For Bluetooth BR/EDR pt=-2.06dBm=0.6223mW at 2480MHz So (0.6223mW/5mm)x √2.480GHz = 0.1960<3 Then SAR evaluation is not required

Shenzhen CTL Testing Technology Co., Ltd. Tel: +86-755-89486194 E-mail: [email protected] TEST REPORT FCC PART 15.247 Report Reference No.: CTL2005267011-WF Compiled by: ( position+printed name+signature) Happy Guo (File administrators) Tested by: ( position+printed name+signature) Nice Nong (Test Engineer) Approved by: ( position+printed name+signature) Ivan Xie (Manager) Product Name ............................ : TWS EARBUDS Model/Type reference ................ : 1683623-05 List Model(s) ............................... : Refer to page 2 Trade Mark .................................. : N/A PO. No. ...................................... : 480425, 480468, 480476 FCC ID ......................................... : 2AC9N1683623 Applicant’s name ....................... : Cotton On USA Inc Address of applicant ................. : 16511, Trojan Way, La Miranda, California 90638, United States Test Firm ..................................... : Shenzhen CTL Testing Technology Co., Ltd. Address of Test Firm ................. : Floor 1-A, Baisha Technology Park, No.3011, Shahexi Road, Nanshan District, Shenzhen, China 518055 Test specification ....................... : Standard ...................................... : FCC Part 15.247: Operation within the bands 902-928 MHz, 2400-2483.5 MHz and 5725-5850 MHz. TRF Originator ............................. : Shenzhen CTL Testing Technology Co., Ltd. Master TRF .................................. : Dated 2011-01 Date of receipt of test item ........ : May 26, 2020 Date of sampling ........................ : May 26, 2020 Date of Test Date ........................ : May 26, 2020–Jun. 03, 2020 Data of Issue............................... : Jun. 03, 2020 Result .......................................... : Pass Shenzhen CTL Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen CTL Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTL Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. V1.0 Page 2 of 39 Report No.: CTL2005267011-WF TEST REPORT Test Report No. : CTL2005267011-WF Jun. 03, 2020 Date of issue Equipment under Test : TWS EARBUDS Model /Type : 1683623-05 Listed Models : 1683623-01, 1683623-02, 1683623-03, 1683623-04, 1683623-06, 1683623-07, 1683623-08, 1683623-09, 1683623-10 Applicant : Cotton On USA Inc Address : 16511, Trojan Way, La Miranda, California 90638, United States Manufacturer : Shenzhen Isaiah Industry and Trade Co., Ltd. Address : 205, Building 14, Longjun Industrial Zone, Heping Road, Dalang street, Longhua District, Shenzhen, China Test result Pass * *In the configuration tested, the EUT complied with the standards specified page 5. The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the issuing testing laboratory. V1.0 Page 3 of 39 Report No.: CTL2005267011-WF ** Modified History ** Revisions Description Issued Data Report No. Remark Version 1.0 Initial Test Report Release 2020-06-03 CTL2005267011-WF Tracy Qi V1.0 Page 4 of 39 Report No.: CTL2005267011-WF Table of Contents Page 1. SUMMARY ............................................................................................................................................................... 5 1.1. TEST STANDARDS ..................................................................................................................................................... 5 1.2. TEST DESCRIPTION ........................................................................................................................................................ 5 1.3. TEST FACILITY .............................................................................................................................................................. 6 1.4. STATEMENT OF THE MEASUREMENT UNCERTAINTY ............................................................................................................... 6 2. GENERAL INFORMATION .......................................................................................................................................... 7 2.1. ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 7 2.2. GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 7 2.3. DESCRIPTION OF TEST MODES AND TEST FREQUENCY .......................................................................................................... 8 2.4. EQUIPMENTS USED DURING THE TEST .............................................................................................................................. 9 2.5. RELATED SUBMITTAL(S) / GRANT (S) ................................................................................................................................ 9 2.6. MODIFICATIONS ........................................................................................................................................................... 9 3. TEST CONDITIONS AND RESULTS ............................................................................................................................ 10 3.1. CONDUCTED EMISSIONS TEST ....................................................................................................................................... 10 3.2. RADIATED EMISSIONS AND BAND EDGE .......................................................................................................................... 13 3.3. MAXIMUM PEAK OUTPUT POWER ............................................…

Text truncated - open the document above for the full version.

Appendix for 15.247 1. Bandwidth 1.1 Test Result Test Mode Frequency (MHz) TX Type ANT No. 20dB Bandwidth Verdict Test Result (MHz) GFSK 2402 SISO 1 0.914 PASS 2441 SISO 1 0.861 PASS 2480 SISO 1 0.909 PASS Pi/4DQPSK 2402 SISO 1 1.298 PASS 2441 SISO 1 1.263 PASS 2480 SISO 1 1.252 PASS 8DPSK 2402 SISO 1 1.267 PASS 2441 SISO 1 1.269 PASS 2480 SISO 1 1.265 PASS Test Mode Frequency (MHz) TX Type ANT No. 99% Occupied Bandwidth Test Result (MHz) GFSK 2402 SISO 1 0.848 Only for Report Use 2441 SISO 1 0.844 Only for Report Use 2480 SISO 1 0.848 Only for Report Use Pi/4DQPSK 2402 SISO 1 1.451 Only for Report Use 2441 SISO 1 1.412 Only for Report Use 2480 SISO 1 1.360 Only for Report Use 8DPSK 2402 SISO 1 1.465 Only for Report Use 2441 SISO 1 1.410 Only for Report Use 2480 SISO 1 1.363 Only for Report Use 1.2 Test Graph - 20dB Bandwidth 1.3 Test Graph - 99% Occupied Bandwidth 2. Maximum Conducted Output Power 2.1 Test Result Test Mode Frequency (MHz) Tx Type Measured Peak Output Power (dBm) Limits (dBm) Verdict Ant 1 GFSK 2402 SISO -3.55 30 PASS 2441 SISO -2.91 30 PASS 2480 SISO -2.25 30 PASS Pi/4DQPSK 2402 SISO -3.48 20.97 PASS 2441 SISO -2.80 20.97 PASS 2480 SISO -2.09 20.97 PASS 8DPSK 2402 SISO -3.48 20.97 PASS 2441 SISO -2.74 20.97 PASS 2480 SISO -2.06 20.97 PASS 2.2 Test Graph 3. Carrier frequency separation 3.1 Test Result Test Mode TX Type ANT No. Channel Separation (MHz) 20dB Bandwidth (MHz) Limits (MHz) Verdict GFSK SISO 1 1.008 0.914 ≥0.914 PASS Pi/4DQPSK SISO 1 0.999 1.298 ≥0.865 PASS 8DPSK SISO 1 0.990 1.269 ≥0.846 PASS 3.2 Test Graph 4. Number of hopping frequencies 4.1 Test Result Test Mode TX Type ANT No. Num of Hopping Frequencies Limits Verdict GFSK SISO 1 79 ≥15 PASS Pi/4DQPS K SISO 1 79 ≥15 PASS 8DPSK SISO 1 79 ≥15 PASS 4.2 Test Graph 5. Unwanted Emissions in Non-restricted Frequency Bands 5.1 Test Result Test Mode Frequency (MHz) TX Type ANT No. Spurious Conducted Emission (dBm) Limits (dBm) Verdict GFSK 2402 SISO 1 Refer to test graph -22.32 PASS 2441 SISO 1 Refer to test graph -22.32 PASS 2480 SISO 1 Refer to test graph -22.32 PASS Hopping SISO 1 Refer to test graph -22.32 PASS Pi/4DQPSK 2402 SISO 1 Refer to test graph -22.32 PASS 2441 SISO 1 Refer to test graph -22.32 PASS 2480 SISO 1 Refer to test graph -22.32 PASS Hopping SISO 1 Refer to test graph -22.32 PASS 8DPSK 2402 SISO 1 Refer to test graph -22.30 PASS 2441 SISO 1 Refer to test graph -22.30 PASS 2480 SISO 1 Refer to test graph -22.30 PASS Hopping SISO 1 Refer to test graph -22.30 PASS 5.2 Test Graph

Test Setup Photos of the EUT