2ACP4LBT960Bluetooth earphones

Sentry Industries limited Agent Authorization Company: Sentry Industries limited Address: Unit 904, 9/F Chinachem Golden Plaza, 77 Mody Road, Tsim Sha Tsui East, Kowloon, Hong Kong, China Product Name: Bluetooth earphones Model Number(s): BT958, BT958W, BT958B, BT958C, BT957W, BT957B, BT957C, BT951, BT954, BT960, BT961, BT964, BT960B, BT960W Product Description: Bluetooth 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: 2022-12-30 Name: Peetu Melwani Company: Sentry Industries limited

Sentry Industries Limited Dec. 14, 2022 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject: Explanation of differences between product types FCC ID : 2ACP4LBT960 Model Number: BT958, BT958W, BT958B, BT958C, BT957W, BT957B, BT957C, BT951, BT954, BT960, BT961, BT964, BT960B, BT960W To Whom It May Concern: We, The Sentry Industries Limited hereby declare that the models are identical except the the model name and color. Except for the different above, no other modification is performed. Sincerely, Signature: Sentry Industries Limited Contact person: Peetu Melwani

Report No.: AGC08189221201AP02 Page 1 of 4 EXTERNAL PHOTOS All VIEW OF EUT TOP VIEW OF EUT Report No.: AGC08189221201AP02 Page 2 of 4 BOTTOM VIEW OF EUT FRONT VIEW OF EUT Report No.: AGC08189221201AP02 Page 3 of 4 BACK VIEW OF EUT LEFT VIEW OF EUT Report No.: AGC08189221201AP02 Page 4 of 4 RIGHT VIEW OF EUT ****************************************End of Report****************************************

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, as below:

Report No.: AGC08189221201AP02 Page 1 of 6 INTERNAL PHOTOS Left- VIEW OF EUT(PORT) OPEN VIEW OF EUT Report No.: AGC08189221201AP02 Page 2 of 6 VIEW OF BATTERY INTERNAL VIEW OF EUT-1 Report No.: AGC08189221201AP02 Page 3 of 6 INTERNAL VIEW OF EUT-2 INTERNAL VIEW OF EUT-3 BT Antenna Report No.: AGC08189221201AP02 Page 4 of 6 Right- VIEW OF EUT(PORT) OPEN VIEW OF EUT Report No.: AGC08189221201AP02 Page 5 of 6 VIEW OF BATTERY INTERNAL VIEW OF EUT-1 Report No.: AGC08189221201AP02 Page 6 of 6 INTERNAL VIEW OF EUT-2 INTERNAL VIEW OF EUT-3 ****************************************End of Report**************************************** BT Antenna

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description Bluetooth earphones Model Name BT958 Series Model BT958W, BT958B, BT958C, BT957W, BT957B, BT957C, BT951, BT954, BT960, BT961, BT964, BT960B, BT960W FCC ID 2ACP4LBT960 2. EVALUATION METHOD According to 447498 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 3. CALCULATION BR&EDR: P t =-2.592dBm=0.55mW 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=(0.55mW / 5mm).[√2.402GHz)]=0.171<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. 4. CONCLUSION The SAR evaluation is not required.

FreqEffiEffiGainGainUHISDHISMaxMinDirectivityBeamwidthAttHAttV (MHz)(%)(dB)(dBi)(dBd)(%)(%)(dB)(dB)(dBi)(3dB)(dB)(dB) 240022.92-6.4-1.72-3.8700-1.72-17.926.43047.3646.86 241025.99-5.850-3.45000-18.715.853047.446.9 242023.03-6.38-1.91-4.0600-1.91-19.96.383047.2846.76 243020.38-6.91-2.44-4.5900-2.44-19.956.913047.3546.78 244024.53-6.1-1.56-3.7100-1.56-18.386.13047.1546.65 245024.05-6.19-1.67-3.8200-1.67-17.586.19047.3346.85 246024.37-6.13-1.63-3.7800-1.63-16.436.13047.7247.22 247021.91-6.59-2.2-4.3500-2.2-16.576.59047.3646.93 248026.01-5.85-1.71-3.8600-1.71-15.15.853047.5647.1 249026.86-5.71-1.87-4.0200-1.87-14.655.713047.0546.67 250026.49-5.77-1.72-3.8700-1.72-14.465.773047.0146.63 Passive Test For BT2.4 Application Information O4Version5.245.351 TotalTime4m 17s 96ms AdditionalInforNULL Antenna typePCB antenna Antenna manufacturerOneWave Electronic Co., Ltd.

Page 1 of 56 FCC Test Report Report No.: AGC08189221201FE03 FCC ID : 2ACP4LBT960 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : Bluetooth earphones BRAND NAME : SENTRY MODEL NAME : BT958, BT958W, BT958B, BT958C, BT957W, BT957B, BT957C, BT951, BT954, BT960, BT961, BT964, BT960B, BT960W APPLICANT : Sentry Industries Limited DATE OF ISSUE : Dec. 13, 2022 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC08189221201FE03 Page 2 of 56 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Dec. 13, 2022 Valid Initial Release Report No.: AGC08189221201FE03 Page 3 of 56 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 ........................................................................................................................................ 18 8.1. MEASUREMENT PROCEDURE ............................................................................................................. 18 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 18 8.3. LIMITS AND MEASUREMENT RESULTS ............................................................................................... 19 9. CONDUCTED SPURIOUS EMISSION........................................................................................................... 23 9.1. MEASUREMENT PROCEDURE ............................................................................................................. 23 Report No.: AGC08189221201FE03 Page 4 of 56 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 23 9.3. MEASUREMENT EQUIPMENT USED .................................................................................................... 23 9.4. LIMITS AND MEASUREMENT RESULT .................................................................................................. 23 10. RADIATED EMISSION ................................................................................................................................. 37 10.1. MEASUREMENT PROCEDURE ........................................................................................................... 37 10.2. TEST SETUP ......................................................................................................................................... 39 10.3. LIMITS AND MEASUREMENT RESULT ............................................................................................... 40 10.4. TEST RESULT........................................................................................................................................ 40 11. NUMBER O…

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Report No.: AGC08189221201AP01 Page 1 of 2 TEST SETUP PHOTOS RADIATED EMISSION TEST SETUP BELOW 1GHz RADIATED EMISSION TEST SETUP ABOVE 1GHz Report No.: AGC08189221201AP01 Page 2 of 2 RF CONDUCTED TEST SETUP ****************************************End of Report*************************************