2AG68-ANC-861Bluetooth Hybrid Active Noise Cancellation Earbuds

The product name, trademark, model, MIC ID and LOGO can be found in the instruction manual and the packaging. 210-154718

Dongguan Koppo Electronics Co., Ltd. No.2 3 Road, Buxinji Industrial Area, Guanjingtou Village, Fenggang Town, Dongguan City, China Agent Authorization Company: Dongguan Koppo Electronics Co., Ltd. Address: No.2 3 Road, Buxinji Industrial Area, Guanjingtou Village, Fenggang Town, Dongguan City, China Product Name: Hybrid Active Noise Cancellation Earbuds Model Number(s): ANC-861, ANC- XXX (Note: "XXX' can represent the number "1 to 9" in arabesques or the letter "A to Z") Product Description: Bluetooth Hybrid Active Noise Cancellation Earbuds 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: Feb. 22, 2021 Name: yongning Wei Title: General Manager Company: Dongguan Koppo Electronics Co., Ltd.

Dongguan Koppo Electronics Co., Ltd. No.2 3 Road, Buxinji Industrial Area, Guanjingtou Village, Fenggang Town, Dongguan City, China Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Feb. 22, 2021 Subject; Request for Confidentiality FCC ID: 2AG68-ANC-861 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description Parts List Tune-up Procedure In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: yongning Wei Title: General Manager

Dongguan Koppo Electronics Co., Ltd. No.2 3 Road, Buxinji Industrial Area, Guanjingtou Village, Fenggang Town, Dongguan City, China Feb. 22, 2021 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject: Explanation of differences between product types FCC ID: 2AG68-ANC-861 Models: ANC-861, ANC- XXX (Note: "XXX' can represent the number "1 to 9" in arabesques or the letter "A to Z") To Whom It May Concern: We, The Dongguan Koppo Electronics Co., Ltd. hereby declare that the model : ANC- XXX (Note: "XXX' can represent the number "1 to 9" in arabesques or the letter "A to Z") is identical with the model : ANC-861, except the appearance color. Except for the different above, no other modification is performed. Sincerely, Dongguan Koppo Electronics Co., Ltd. Signature: [yongning Wei, General Manager]

External Photos Test Model: ANC-861 ALL VIEW-1 OF EUT EXTERNAL VIEW-1 OF EUT EXTERNAL VIEW-2 OF EUT EXTERNAL VIEW-3 OF EUT EXTERNAL VIEW-4 OF EUT EXTERNAL VIEW-5 OF EUT EXTERNAL VIEW-6 OF EUT

FCC ID and TELEC 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: The MIC logo height is 5mm*5mm

Internal Photos Test Model: ANC-861 INTERNAL VIEW-1 OF EUT(Left earphone) INTERNAL VIEW-2 OF EUT(Left earphone) INTERNAL VIEW-3 OF EUT(Left earphone) INTERNAL VIEW-4 OF EUT(Left earphone) INTERNAL VIEW-5 OF EUT(Left earphone) INTERNAL VIEW-6 OF EUT(Left earphone) Antenna INTERNAL VIEW-1 OF EUT(Right earphone) INTERNAL VIEW-2 OF EUT(Right earphone) INTERNAL VIEW-3 OF EUT(Right earphone) INTERNAL VIEW-4 OF EUT(Right earphone) INTERNAL VIEW-5 OF EUT(Right earphone) INTERNAL VIEW-6 OF EUT(Right earphone) Antenna

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description Hybrid Active Noise Cancellation Earbuds Model Name ANC-861 FCC ID 2AG68-ANC-861 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 = 0.868dBm=1.22mW 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=(1.22mW /5mm) .[√2.402GHz)]=0.38<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. BLE: P t = -0.590dBm=0.87mW 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=(0.87mW /5mm) .[√2.402GHz)]= 0.27<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 54 FCC Test Report Report No.: AGC08328210101FE02 FCC ID : 2AG68-ANC-861 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : Hybrid Active Noise Cancellation Earbuds BRAND NAME : N/A MODEL NAME : See page 5 APPLICANT : Dongguan Koppo Electronics Co., Ltd. DATE OF ISSUE : Feb. 19, 2021 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC08328210101FE02 Page 2 of 54 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Feb. 19, 2021 Valid Initial Release Report No.: AGC08328210101FE02 Page 3 of 54 TABLE OF CONTENTS 1. VERIFICATION OF COMPLIANCE .................................................................................................................. 5 2. GENERAL INFORMATION .............................................................................................................................. 6 2.1. PRODUCT DESCRIPTION ........................................................................................................................ 6 2.2. TABLE OF CARRIER FREQUENCYS ....................................................................................................... 6 2.3. RELATED SUBMITTAL(S)/GRANT(S) ....................................................................................................... 7 2.4. TEST METHODOLOGY ............................................................................................................................. 7 2.5. SPECIAL ACCESSORIES .......................................................................................................................... 7 2.6. EQUIPMENT MODIFICATIONS ................................................................................................................. 7 2.7. ANTENNA REQUIREMENT ....................................................................................................................... 7 3. MEASUREMENT UNCERTAINTY ................................................................................................................... 8 4. DESCRIPTION OF TEST MODES ................................................................................................................... 9 5. SYSTEM TEST CONFIGURATION ................................................................................................................ 10 5.1. CONFIGURATION OF TESTED SYSTEM ............................................................................................... 10 5.2. EQUIPMENT USED IN TESTED SYSTEM .............................................................................................. 10 5.3. SUMMARY OF TEST RESULTS .............................................................................................................. 10 6. TEST FACILITY .............................................................................................................................................. 11 7. PEAK OUTPUT POWER ................................................................................................................................ 12 7.1. MEASUREMENT PROCEDURE .............................................................................................................. 12 7.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 12 7.3. LIMITS AND MEASUREMENT RESULT .................................................................................................. 13 8. 6 DB BANDWIDTH ......................................................................................................................................... 17 8.1. MEASUREMENT PROCEDURE .............................................................................................................. 17 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 17 8.3. LIMITS AND MEASUREMENT RESULTS ............................................................................................... 17 9. CONDUCTED SPURIOUS EMISSION........................................................................................................... 19 9.1. MEASUREMENT PROCEDURE .............................................................................................................. 19 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 19 9.3. MEASUREMENT EQUIPMENT USED .................................................................................................... 19 9.4. LIMITS AND MEASUREMENT RESULT .................................................................................................. 19 10. MAXIMUM CONDUCTED OUTPUT POWER SPECTRAL DENSITY ........................................................ 27 Report No.: AGC08328210101FE02 Page 4 of 54 10.1. MEASUREMENT PROCEDURE ............................................................................................................ 27 10.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................. 27 10.3. MEASUREMENT EQUIPMENT USED .................................................................................................. 27 10.4. LIMITS AND MEASUREMENT RESULT................................................................................................ 27 11. RADIATED EMISSION ................................................................................................................................. 29 11.1. MEASUREMENT PROCEDURE ............................................................................................................ 29 11.2. TEST SETUP .......................................................................................................................................... 30 11.3. LIMITS AND MEASUREMENT RESULT................................................................…

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Report No.: AGC08328210101FE02 Page 31 of 54 11.3. LIMITS AND MEASUREMENT RESULT 15.209 Limit in the below table has to be followed Frequencies (MHz) Field Strength (microvolts/meter) Measurement Distance (meters) 0.009~0.490 2400/F(kHz) 300 0.490~1.705 24000/F(kHz) 30 1.705~30.0 30 30 30~88 100 3 88~216 150 3 216~960 200 3 Above 960 500 3 Note: All modes were tested for restricted band radiated emission, the test records reported below are the worst result compared to other modes. 11.4. TEST RESULT RADIATED EMISSION BELOW 30MHz The amplitude of spurious emissions from 9kHz to 30MHz which are attenuated more than 20 dB below the permissible value need not be reported. Report No.: AGC08328210101FE02 Page 32 of 54 RADIATED EMISSION BELOW 1GHZ EUT Hybrid Active Noise Cancellation Earbuds Model Name ANC-861 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 1 Antenna Horizontal NO. Freq. [MHz] Level [dBμV/m] Factor [dB] Limit [dBμV/m] Margin [dB] Height [cm] Angle [°] Polarity 1 36.7900 18.08 11.16 40.00 21.92 100 90 Horizontal 2 56.1900 16.97 11.20 40.00 23.03 100 330 Horizontal 3 108.5700 18.83 12.27 43.50 24.67 100 160 Horizontal 4 235.6400 20.41 14.48 46.00 25.59 100 50 Horizontal 5 511.1200 28.64 22.40 46.00 17.36 100 210 Horizontal 6 786.6000 34.37 28.14 46.00 11.63 100 310 Horizontal RESULT: PASS Report No.: AGC08328210101FE02 Page 33 of 54 EUT Hybrid Active Noise Cancellation Earbuds Model Name ANC-861 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 1 Antenna Vertical NO. Freq. [MHz] Level [dBμV/m] Factor [dB] Limit [dBμV/m] Margin [dB] Height [cm] Angle [°] Polarity 1 38.7300 17.21 11.63 40.00 22.79 100 230 Vertical 2 61.0400 16.99 10.74 40.00 23.01 100 160 Vertical 3 120.2100 18.96 13.48 43.50 24.54 100 230 Vertical 4 159.9800 20.58 14.94 43.50 22.92 100 30 Vertical 5 297.7200 21.57 15.94 46.00 24.43 100 20 Vertical 6 624.6100 32.66 24.76 46.00 13.34 100 40 Vertical RESULT: PASS Note: 1. Factor=Antenna Factor + Cable loss, Margin=Limit-Measurement. 2. All test modes had been tested. The mode 1 is the worst case and recorded in the report. Report No.: AGC08328210101FE02 Page 34 of 54 RADIATED EMISSION ABOVE 1GHZ EUT Hybrid Active Noise Cancellation Earbuds Model Name ANC-861 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 1 Antenna Horizontal FrequencyMeter ReadingFactorEmission LevelLimitsMargin (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) 4804.00043.650.0843.7374-30.27 peak 4804.00035.490.0835.5754-18.43 AVG 7206.00038.372.2140.5874-33.42 peak 7206.00031.542.2133.7554-20.25 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type EUT Hybrid Active Noise Cancellation Earbuds Model Name ANC-861 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 1 Antenna Vertical FrequencyMeter ReadingFactorEmission LevelLimitsMargin (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) 4804.00044.780.0844.8674-29.14 peak 4804.00034.630.0834.7154-19.29 AVG 7206.00037.942.2140.1574-33.85 peak 7206.00030.662.2132.8754-21.13 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type Report No.: AGC08328210101FE02 Page 35 of 54 EUT Hybrid Active Noise Cancellation Earbuds Model Name ANC-861 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 2 Antenna Horizontal FrequencyMeter ReadingFactorEmission LevelLimitsMargin (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) 4880.00044.740.1444.8874-29.12 peak 4880.00035.620.1435.7654-18.24 AVG 7320.00039.812.3642.1774-31.83 peak 7320.00031.532.3633.8954-20.11 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type EUT Hybrid Active Noise Cancellation Earbuds Model Name ANC-861 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 2 Antenna Vertical FrequencyMeter ReadingFactorEmission LevelLimitsMargin (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) 4880.00046.130.1446.2774-27.73 peak 4880.00037.620.1437.7654-16.24 AVG 7320.00040.292.3642.6574-31.35 peak 7320.00032.152.3634.5154-19.49 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type Report No.: AGC08328210101FE02 Page 36 of 54 EUT Hybrid Active Noise Cancellation Earbuds Model Name ANC-861 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 3 Antenna Horizontal FrequencyMeter ReadingFactorEmission LevelLimitsMargin (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) 4960.00044.350.2244.5774-29.43 peak 4960.00035.460.2235.6854-18.32 AVG 7440.00038.942.6441.5874-32.42 peak 7440.00029.572.6432.2154-21.79 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type EUT Hybrid Active Noise Cancellation Earbuds Model Name ANC-861 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 3 Antenna Vertical FrequencyMeter ReadingFactorEmission LevelLimitsMargin (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) 4960.00042.990.2243.2174-30.79 peak 4960.00034.140.2234.3654-19.64 AVG 7440.00038.252.6440.8974-33.11 peak 7440.00029.072.6431.7154-22.29 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type RESULT: PASS Note: The amplitude of other spurious emissions from 1G to 25 GHz which are attenuated more than 20 dB below the permissible value need not be reported. Factor = Antenna Factor + Cable loss - Amplifier gain, Over=Measure-Limit. The “Factor” value can be calculated automatically by software of measurement system. Report No.: AGC08328210101FE02 Page 37 of 54 TEST RESULT FOR RESTRICTED BANDS REQUIREMENTS EUT Hybrid Active Noise Cancellation Earbuds Model Name ANC-861 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 1 Antenna Horizontal PK AV RESULT: PASS Report No.: AGC08328210101FE02 Page 38 of 54 EUT Hybrid Active Noise Cancellation Earbuds Mo…

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