2A2VUKM-HTW008ANC True Wireless Earbuds

< >< > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > ,,  &KLQD < >< > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > ,,  &KLQD

Shenzhen Subject Technology Co., Ltd. 1004, Building 11, phase II, Tianan Yungu Industrial Park, Gangtou Community, Bantian Street, Longgang District, Shenzhen, China Aug, 30, 2021 Federal Communication Commission Authorization and Evaluation Division FCC ID: 2A2VUKM-HTW008 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: Schematics 3: Operational Description 4: Parts List 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, Shenzhen Subject Technology Co., Ltd. Contact person: Leslie Chen Title: General Manager

External Photos Test Model: KM-HTW008 WHOLE VIEW OF EUT TOP VIEW OF EUT BOTTOM VIEW OF EUT FRONT VIEW OF EUT BACK VIEW OF EUT LEFT VIEW OF EUT RIGHT VIEW OF EUT Left VIEW OF EUT (PORT) Right VIEW OF EUT (PORT) Series model: KM-HTW00802 WHOLE VIEW OF EUT TOP VIEW OF EUT BOTTOM VIEW OF EUT FRONT VIEW OF EUT BACK VIEW OF EUT LEFT VIEW OF EUT RIGHT VIEW OF EUT

FCC ID Label Location The product does not have enough space to place the label, and FCC ID label is reflected in the user manual and package. User manual as below:

Internal Photos Test Model: KM-HTW008 Left OPEN VIEW OF EUT VIEW OF BATTERY INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2 INTERNAL VIEW OF EUT-3 INTERNAL VIEW OF EUT-4 Antenna Right VIEW OF EUT (PORT) OPEN VIEW OF EUT VIEW OF BATTERY INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2 INTERNAL VIEW OF EUT-3 INTERNAL VIEW OF EUT-4 Series model: KM-HTW00802 Left OPEN VIEW OF EUT Antenna VIEW OF BATTERY INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2 INTERNAL VIEW OF EUT-3 INTERNAL VIEW OF EUT-4 Right OPEN VIEW OF EUT VIEW OF BATTERY INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2 INTERNAL VIEW OF EUT-3 INTERNAL VIEW OF EUT-4

Page 1 of 93 FCC Test Report Report No.: AGC12327210802FE03 FCC ID : 2A2VUKM-HTW008 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : ANC True Wireless Earbuds BRAND NAME : KMOUK MODEL NAME : KM-HTW008, KM-HTW00802 APPLICANT : Shenzhen Subject Technology Co., Ltd. DATE OF ISSUE : Aug. 30, 2021 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC12327210802FE03 Page 2 of 93 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Aug. 30, 2021 Valid Initial Release Report No.: AGC12327210802FE03 Page 3 of 93 TABLE OF CONTENTS 1. VERIFICATION OF CONFORMITY .................................................................................................................. 5 2. GENERAL INFORMATION .............................................................................................................................. 6 2.1. PRODUCT DESCRIPTION ........................................................................................................................ 6 2.2. TABLE OF CARRIER FREQUENCYS ....................................................................................................... 6 2.3. RECEIVER INPUT BANDWIDTH .............................................................................................................. 7 2.4. EXAMPLE OF A HOPPING SEQUENCY IN DATA MODE ......................................................................... 7 2.5. EQUALLY AVERAGE USE OF FREQUENCIES AND BEHAVIOUR ......................................................... 7 2.6. RELATED SUBMITTAL(S) / GRANT (S) .................................................................................................... 8 2.7. TEST METHODOLOGY ............................................................................................................................. 8 2.8. SPECIAL ACCESSORIES ......................................................................................................................... 8 2.9. EQUIPMENT MODIFICATIONS ................................................................................................................. 8 2.10. ANTENNA REQUIREMENT..................................................................................................................... 8 3. MEASUREMENT UNCERTAINTY ................................................................................................................... 9 4. DESCRIPTION OF TEST MODES ................................................................................................................. 10 5. SYSTEM TEST CONFIGURATION ................................................................................................................ 11 5.1. CONFIGURATION OF EUT SYSTEM ...................................................................................................... 11 5.2. EQUIPMENT USED IN TESTED SYSTEM .............................................................................................. 11 5.3. SUMMARY OF TEST RESULTS .............................................................................................................. 11 6. TEST FACILITY .............................................................................................................................................. 12 7. PEAK OUTPUT POWER ................................................................................................................................ 13 7.1. MEASUREMENT PROCEDURE ............................................................................................................. 13 7.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 13 7.3. LIMITS AND MEASUREMENT RESULT .................................................................................................. 14 8. 20DB BANDWIDTH ........................................................................................................................................ 24 8.1. MEASUREMENT PROCEDURE ............................................................................................................. 24 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 24 8.3. LIMITS AND MEASUREMENT RESULTS ............................................................................................... 25 9. CONDUCTED SPURIOUS EMISSION........................................................................................................... 30 9.1. MEASUREMENT PROCEDURE ............................................................................................................. 30 Report No.: AGC12327210802FE03 Page 4 of 93 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 30 9.3. MEASUREMENT EQUIPMENT USED .................................................................................................... 30 9.4. LIMITS AND MEASUREMENT RESULT .................................................................................................. 30 10. RADIATED EMISSION ................................................................................................................................. 51 10.1. MEASUREMENT PROCEDURE ........................................................................................................... 51 10.2. TEST SETUP ......................................................................................................................................... 53 10.3. LIMITS AND MEASUREMENT RESULT ............................................................................................... 54 10.4. TEST RESULT........................................................................................................................................ 54 11. NUMBER OF HOPPING FREQUENCY ..........................................…

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

Report No.: AGC12327210802FE03 Page 39 of 93 Test_Graph_EDR_ANT1_2480_2Mbps_Lower Band Emissions Test_Graph_EDR_ANT1_2480_2Mbps_Higher Band Emissions Report No.: AGC12327210802FE03 Page 40 of 93 Test_Graph_EDR_ANT1_2402_3Mbps_Reference Level Test_Graph_EDR_ANT1_2402_3Mbps_Lower Band Emissions Report No.: AGC12327210802FE03 Page 41 of 93 Test_Graph_EDR_ANT1_2402_3Mbps_Higher Band Emissions Test_Graph_EDR_ANT1_2441_3Mbps_Reference Level Report No.: AGC12327210802FE03 Page 42 of 93 Test_Graph_EDR_ANT1_2441_3Mbps_Lower Band Emissions Test_Graph_EDR_ANT1_2441_3Mbps_Higher Band Emissions Report No.: AGC12327210802FE03 Page 43 of 93 Test_Graph_EDR_ANT1_2480_3Mbps_Reference Level Test_Graph_EDR_ANT1_2480_3Mbps_Lower Band Emissions Report No.: AGC12327210802FE03 Page 44 of 93 Test_Graph_EDR_ANT1_2480_3Mbps_Higher Band Emissions Report No.: AGC12327210802FE03 Page 45 of 93 Test Graphs of Band Edge Emissions in Non-Restricted Frequency Bands Test_Graph_BR_ANT1_2402_1Mbps_Lower Band Edge Emissions Test_Graph_BR_ANT1_2480_1Mbps_Higher Band Edge Emissions Report No.: AGC12327210802FE03 Page 46 of 93 Test_Graph_BR_HOP_ANT1_NA_1Mbps_Lower Band Edge Emissions Test_Graph_BR_HOP_ANT1_NA_1Mbps_Higher Band Edge Emissions Report No.: AGC12327210802FE03 Page 47 of 93 Test_Graph_EDR_ANT1_2402_2Mbps_Lower Band Edge Emissions Test_Graph_EDR_ANT1_2480_2Mbps_Higher Band Edge Emissions Report No.: AGC12327210802FE03 Page 48 of 93 Test_Graph_EDR_HOP_ANT1_NA_2Mbps_Lower Band Edge Emissions Test_Graph_EDR_HOP_ANT1_NA_2Mbps_Higher Band Edge Emissions Report No.: AGC12327210802FE03 Page 49 of 93 Test_Graph_EDR_ANT1_2402_3Mbps_Lower Band Edge Emissions Test_Graph_EDR_ANT1_2480_3Mbps_Higher Band Edge Emissions Report No.: AGC12327210802FE03 Page 50 of 93 Test_Graph_EDR_HOP_ANT1_NA_3Mbps_Lower Band Edge Emissions Test_Graph_EDR_HOP_ANT1_NA_3Mbps_Higher Band Edge Emissions Report No.: AGC12327210802FE03 Page 51 of 93 10. RADIATED EMISSION 10.1. MEASUREMENT PROCEDURE 1. The EUT was placed on the top of the turntable 0.8 or 1.5 meter above ground. The phase center of the receiving antenna mounted on the top of a height-variable antenna tower was placed 3 meters far away from the turntable. 2. Power on the EUT and all the supporting units. The turntable was rotated by 360 degrees to determine the position of the highest radiation. 3. The height of the broadband receiving antenna was varied between one meter and four meters above ground to find the maximum emissions field strength of both horizontal and vertical polarization. 4. For each suspected emission, the antenna tower was scan (from 1 M to 4 M) and then the turntable was rotated (from 0 degree to 360 degrees) to find the maximum reading. 5. Set the test-receiver system to Peak or CISPR quasi-peak Detect Function with specified bandwidth under Maximum Hold Mode. 6. For emissions above 1GHz, use 1MHz RBW and 3MHz VBW for peak reading. Place the measurement antenna away from each area of the EUT determined to be a source of emissions at the specified measurement distance, while keeping the measurement antenna aimed at the source of emissions at each frequency of significant emissions, with polarization oriented for maximum response. The measurement antenna may have to be higher or lower than the EUT, depending on the radiation pattern of the emission and staying aimed at the emission source for receiving the maximum signal. The final measurement antenna elevation shall be that which maximizes the emissions. The measurement antenna elevation for maximum emissions shall be restricted to a range of heights of from 1 m to 4 m above the ground or reference ground plane. 7. When the radiated emissions limits are expressed in terms of the average value of the emissions, and pulsed operation is employed, the measurement field strength shall be determined by averaging over one complete pulse train, including blanking intervals, as long as the pulse train does not exceed 0.1 seconds. As an alternative (provided the transmitter operates for longer than 0.1 seconds) or in cases where the pulse train exceeds 0.1 seconds, the measured field strength shall be determined from the average absolute voltage during a 0.1 second interval during which the field strength is at its maximum values. 8.If the emissions level of the EUT in peak mode was 3 dB lower than the average limit specified, then testing will be stopped and peak values of EUT will be reported, otherwise, the emissions which do not have 3 dB margin will be repeated one by one using the quasi-peak method for below 1GHz. 9. For testing above 1GHz, the emissions level of the EUT in peak mode was lower than average limit (that means the emissions level in peak mode also complies with the limit in average mode), then testing will be stopped and peak values of EUT will be reported, otherwise, the emissions will be measured in average mode again and reported. 10. In case the emission is lower than 30MHz, loop antenna has to be used for measurement and the recorded data should be QP measured by receiver. High - Low scan is not required in this case. Report No.: AGC12327210802FE03 Page 52 of 93 The following table is the setting of spectrum analyzer and receiver. Spectrum Parameter Setting Start ~Stop Frequency 9KHz~150KHz/RB 200Hz for QP Start ~Stop Frequency 150KHz~30MHz/RB 9KHz for QP Start ~Stop Frequency 30MHz~1000MHz/RB 120KHz for QP Start ~Stop Frequency 1GHz~26.5GHz 1MHz/3MHz for Peak, 1MHz/3MHz for Average Receiver Parameter Setting Start ~Stop Frequency 9KHz~150KHz/RB 200Hz for QP Start ~Stop Frequency 150KHz~30MHz/RB 9KHz for QP Start ~Stop Frequency 30MHz~1000MHz/RB 120KHz for QP Report No.: AGC12327210802FE03 Page 53 of 93 10.2. TEST SETUP Radiated Emission Test-Setup Frequency Below 30MHz RADIATED EMISSION TEST SETUP 30MHz-1000MHz RADIATED EMISSION TEST SETUP ABOVE 1000MHz Report No.: AGC12327210802FE03 Page 54 of 93 10.3. LIMITS AND MEASUREMENT RESULT 15.209 Limit in the below table has to be followed Frequencies (MHz) Field…

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

Report No.: AGC12327210802FE03 Page 73 of 93 CONDUCTED TEST SETUP Report No.: AGC12327210802FE03 Page 74 of 93 APPENDIX B: PHOTOGRAPHS OF EUT Test Model: KM-HTW008 WHOLE VIEW OF EUT TOP VIEW OF EUT Report No.: AGC12327210802FE03 Page 75 of 93 BOTTOM VIEW OF EUT FRONT VIEW OF EUT Report No.: AGC12327210802FE03 Page 76 of 93 BACK VIEW OF EUT LEFT VIEW OF EUT Report No.: AGC12327210802FE03 Page 77 of 93 RIGHT VIEW OF EUT Left VIEW OF EUT (PORT) Report No.: AGC12327210802FE03 Page 78 of 93 OPEN VIEW OF EUT VIEW OF BATTERY Report No.: AGC12327210802FE03 Page 79 of 93 INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2 Report No.: AGC12327210802FE03 Page 80 of 93 INTERNAL VIEW OF EUT-3 INTERNAL VIEW OF EUT-4 Antenna Report No.: AGC12327210802FE03 Page 81 of 93 Right VIEW OF EUT (PORT) OPEN VIEW OF EUT Report No.: AGC12327210802FE03 Page 82 of 93 VIEW OF BATTERY INTERNAL VIEW OF EUT-1

Report No.: AGC12327210802FE03 Page 83 of 93 INTERNAL VIEW OF EUT-2 INTERNAL VIEW OF EUT-3 Report No.: AGC12327210802FE03 Page 84 of 93 INTERNAL VIEW OF EUT-4 Series model: KM-HTW00802 WHOLE VIEW OF EUT Antenna Report No.: AGC12327210802FE03 Page 85 of 93 TOP VIEW OF EUT BOTTOM VIEW OF EUT Report No.: AGC12327210802FE03 Page 86 of 93 FRONT VIEW OF EUT BACK VIEW OF EUT Report No.: AGC12327210802FE03 Page 87 of 93 LEFT VIEW OF EUT RIGHT VIEW OF EUT Report No.: AGC12327210802FE03 Page 88 of 93 Left OPEN VIEW OF EUT VIEW OF BATTERY Report No.: AGC12327210802FE03 Page 89 of 93 INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2 Report No.: AGC12327210802FE03 Page 90 of 93 INTERNAL VIEW OF EUT-3 INTERNAL VIEW OF EUT-4 Report No.: AGC12327210802FE03 Page 91 of 93 Right OPEN VIEW OF EUT VIEW OF BATTERY Report No.: AGC12327210802FE03 Page 92 of 93 INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2

Report No.: AGC12327210802FE03 Page 93 of 93 INTERNAL VIEW OF EUT-3 INTERNAL VIEW OF EUT-4 ----END OF REPORT---- Conditions of Issuance of Test Reports 1. All samples and goods are accepted by the Attestation of Global Compliance (Shenzhen) Co., Ltd (the “Company”) solely for testing and reporting in accordance with the following terms and conditions. The company provides its services on the basis that such terms and conditions constitute express agreement between the company and any person, firm or company requesting its services (the “Clients”). 2. Any report issued by Company as a result of this application for testing services (the “Report”) shall be issued in confidence to the Clients and the Report will be strictly treated as such by the Company. It may not be reproduced either in its entirety or in part and it may not be used for advertising or other unauthorized purposes without the written consent of the Company. The Clients to whom the Report is issued may, however, show or send it, or a certified copy thereof prepared by the Company to its customer, supplier or other persons directly concerned. The Company will not, without the consent of the Clients, enter into any discussion or correspondence with any third party concerning the contents of the Report, unless required by the relevant governmental authorities, laws or court orders. 3.The Company shall not be called or be liable to be called to give evidence or testimony on the Report in a court of law without its prior written consent, unless required by the relevant governmental authorities, laws or court orders. 4. The non-CMA report issued by AGC is only permitted to be used by the client as internal reference use and shall not be used for public demonstration purpose. 5. In the event of the improper use of the report as determined by the Company, the Company reserves the right to withdraw it, and to adopt any other additional remedies which may be appropriate. 6. Samples submitted for testing are accepted on the understanding that the Report issued cannot form the basis of, or be the instrument for, any legal action against the Company. 7. The Company will not be liable for or accept responsibility for any loss or damage however arising from the use of information contained in any of its Reports or in any communication whatsoever about its said tests or investigations. 8.Clients wishing to use the Report in court proceedings or arbitration shall inform the Company to that effect prior to submitting the sample for testing. 9. The Company is not responsible for recalling the electronic version of the original report when any revision is made to them. The Client assumes the responsibility to providing the revised version to any interested party who uses them. 10. Subject to the variable length of retention time for test data and report stored hereinto as otherwise specifically required by individual accreditation authorities, the Company will only keep the supporting test data and information of the test report for a period of six years. The data and information will be disposed of after the aforementioned retention period has elapsed. Under no circumstances shall we provide any data and information which has been disposed of after retention period. Under no circumstances shall we be liable for damage of any kind, including (but not limited to) compensatory damages, lost profits, lost data, or any form of special, incidental, indirect, consequential or punitive damages of any kind, whether based on breach of contract of warranty, tort (including negligence), product liability or otherwise, even if we are informed in advance of the possibility of such damages.

Test Setup Photos RADIATED EMISSION TEST SETUP BELOW 1GHz RADIATED EMISSION TEST SETUP ABOVE 1GHz CONDUCTED TEST SETUP