2ARDYBH-T01TWS Earphones

SHENZHEN DAK TECHNOLOGY CO.,LTD 3-4/F,BLDG D,Demei Industrial CTR, Donghuan 2nd RD,Longhua St.,Longhua District, Shenzhen, China Agent Authorization Company: SHENZHEN DAK TECHNOLOGY CO.,LTD Address: 3-4/F,BLDG D,Demei Industrial CTR, Donghuan 2nd RD,Longhua St.,Longhua District, Shenzhen, China Product Name: TWS Earphones Model Number(s): BH-T01, BH-T02, BH-T03, BH-T04, BH-T05, BH-T06 Product Description: TWS Earphones We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: Sep. 15, 2020 Name: Honglei Jia Title: General Manager Company: SHENZHEN DAK TECHNOLOGY CO.,LTD

SHENZHEN DAK TECHNOLOGY CO.,LTD 3-4/F,BLDG D,Demei Industrial CTR, Donghuan 2nd RD,Longhua St.,Longhua District, Shenzhen, China Sep. 15, 2020 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject: Explanation of differences between product types FCC ID: 2ARDYBH-T01 Models: BH-T01, BH-T02, BH-T03, BH-T04, BH-T05, BH-T06 To Whom It May Concern: We, The SHENZHEN DAK TECHNOLOGY CO.,LTD hereby declare that the model : BH-T02, BH-T03, BH-T04, BH-T05, BH-T06 is identical with the model : BH-T01, except the model name. Except for the different above, no other modification is performed. Sincerely, SHENZHEN DAK TECHNOLOGY CO.,LTD Signature: [Honglei Jia, General Manager]

External Photos 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 Charging Dock TOP VIEW OF EUT BOTTOM VIEW OF EUT FRONT VIEW OF EUT BACK VIEW OF EUT LEFT VIEW OF EUT VIEW OF EUT(port)-1 VIEW OF EUT(port)-2

Label Location The MIC Logo height is 5mm*5mm. 10mm*20mm FCC ID: 2AI4PBT111 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.

Internal Photos Left 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 BT Antenna Right VIEW OF EUT(PORT) OPEN VIEW OF EUT VIEW OF BATTERY INTERNAL VIEW OF EUT-1 BT Antenna INTERNAL VIEW OF EUT-2 INTERNAL VIEW OF EUT-3 Charging Dock OPEN VIEW OF EUT VIEW OF BATTERY INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description TWS Earphones Model Name BH-T01 FCC ID 2ARDYBH-T01 2. EVALUATION METHOD 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 GHz Power and distance are rounded to the nearest mW and mm before calculation 3. CALCULATION BR/EDR: Pt= 2.175dBm=1.65mW The value of the Maximum output power Pt is referred to the test report of the CFR47 §15.247. The result for RF exposure evaluation SAR=(1.65mW /5mm) .[√2.480GHz)]=0.52<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. BLE: Pt=2.608dBm=1.82mW The value of the Maximum output power P t is referred to the test report of the CFR47 §15.247. The result for RF exposure evaluation SAR=(1.82mW /5mm) .[√2.402(GHz)]=0.56<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. 4. CONCLUSION The SAR evaluation is not required.

Page 1 of 55 FCC Test Report Report No.: AGC02324200903FE02 FCC ID : 2ARDYBH-T01 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : TWS Earphones BRAND NAME : CHOETECH MODEL NAME : BH-T01, BH-T02, BH-T03, BH-T04, BH-T05, BH-T06 APPLICANT : SHENZHEN DAK TECHNOLOGY CO.,LTD DATE OF ISSUE : Sep. 15,2020 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd = Report No.: AGC02324200903FE02 Page 2 of 55 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Sep. 15,2020 Valid Initial Release Report No.: AGC02324200903FE02 Page 3 of 55 TABLE OF CONTENTS 1. VERIFICATION OF COMPLIANCE .................................................................................................................. 4 2. GENERAL INFORMATION .............................................................................................................................. 5 2.1. PRODUCT DESCRIPTION ........................................................................................................................ 5 2.2. TABLE OF CARRIER FREQUENCYS ....................................................................................................... 5 2.3. RELATED SUBMITTAL(S)/GRANT(S) ....................................................................................................... 6 2.4. TEST METHODOLOGY ............................................................................................................................. 6 2.5. SPECIAL ACCESSORIES .......................................................................................................................... 6 2.6. EQUIPMENT MODIFICATIONS ................................................................................................................. 6 2.7. ANTENNA REQUIREMENT ....................................................................................................................... 6 3. MEASUREMENT UNCERTAINTY ................................................................................................................... 7 4. DESCRIPTION OF TEST MODES ................................................................................................................... 8 5. SYSTEM TEST CONFIGURATION .................................................................................................................. 9 5.1. CONFIGURATION OF TESTED SYSTEM ................................................................................................. 9 5.2. EQUIPMENT USED IN TESTED SYSTEM ................................................................................................ 9 5.3. SUMMARY OF TEST RESULTS ................................................................................................................ 9 6. TEST FACILITY .............................................................................................................................................. 10 7. PEAK OUTPUT POWER ................................................................................................................................ 11 7.1. MEASUREMENT PROCEDURE .............................................................................................................. 11 7.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 11 7.3. LIMITS AND MEASUREMENT RESULT .................................................................................................. 12 8. 6 DB BANDWIDTH ......................................................................................................................................... 14 8.1. MEASUREMENT PROCEDURE .............................................................................................................. 14 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 14 8.3. LIMITS AND MEASUREMENT RESULTS ............................................................................................... 14 9. CONDUCTED SPURIOUS EMISSION........................................................................................................... 16 9.1. MEASUREMENT PROCEDURE .............................................................................................................. 16 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 16 9.3. MEASUREMENT EQUIPMENT USED .................................................................................................... 16 9.4. LIMITS AND MEASUREMENT RESULT .................................................................................................. 16 10. MAXIMUM CONDUCTED OUTPUT POWER SPECTRAL DENSITY ........................................................ 24 10.1. MEASUREMENT PROCEDURE ............................................................................................................ 24 10.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................. 24 10.3. MEASUREMENT EQUIPMENT USED .................................................................................................. 24 10.4. LIMITS AND MEASUREMENT RESULT................................................................................................ 24 11. RADIATED EMISSION ................................................................................................................................. 26 11.1. MEASUREMENT PROCEDURE ............................................................................................................ 26 11.2. TEST SETUP .......................................................................................................................................... 27 11.3. LIMITS AND MEASUREMENT RESULT................................................................................................ …

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Report No.: AGC02324200903FE02 Page 45 of 55 INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2 BT Antenna Report No.: AGC02324200903FE02 Page 46 of 55 INTERNAL VIEW OF EUT-3 Right VIEW OF EUT(PORT) Report No.: AGC02324200903FE02 Page 47 of 55 OPEN VIEW OF EUT VIEW OF BATTERY Report No.: AGC02324200903FE02 Page 48 of 55 INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2 BT Antenna Report No.: AGC02324200903FE02 Page 49 of 55 INTERNAL VIEW OF EUT-3 Charging Dock TOP VIEW OF EUT Report No.: AGC02324200903FE02 Page 50 of 55 BOTTOM VIEW OF EUT FRONT VIEW OF EUT Report No.: AGC02324200903FE02 Page 51 of 55 BACK VIEW OF EUT LEFT VIEW OF EUT Report No.: AGC02324200903FE02 Page 52 of 55 RIGHT VIEW OF EUT VIEW OF EUT(port)-1 Report No.: AGC02324200903FE02 Page 53 of 55 VIEW OF EUT(port)-2 OPEN VIEW OF EUT Report No.: AGC02324200903FE02 Page 54 of 55 VIEW OF BATTERY INTERNAL VIEW OF EUT-1 Report No.: AGC02324200903FE02 Page 55 of 55 INTERNAL VIEW OF EUT-2 ----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