2A83I-POPBTN10BUTTONS POP

x2 Mode Switch: A�er connec�ng and wearing both earphones, double -tap the cover disc on the le� earphone to switch between ANC / ambient sound / standard modes. Enter ANC Mode: Can hear voice prompt “Noise Cancella�on On”; Enter Ambient Sound Mode: Can hear voice prompt “Ambient On” ; Enter Standard Mode: Can hear voice prompt "Off"; Note: The default mode of the earphones is ANC mode; Mode switch cannot be performed when only one earphone is used. Smart Noise Cancellation BUTTONS POP Earphones are configured with three modes (ANC, ambient sound and standard), and you can switch between them as needed. ANC Mode: The noise reduc�on is up to 35dB, elimina�ng most of the noise interference in the low frequency band, bringing a quiet and private listening experience. Ambient Sound Mode: in this mode, ambient sound is collected and played in the ears to improve the percep�on of the external environment so that the ambient sound outside the ears can be clearly heard; Standard Mode: in this mode, the ac�ve noise cancella�on and ambient sound func�ons are disabled, and the earphones are used as TWS earphones only. Music Control Play/Pause x 2 x 3 Track Switch Using both earphones: Double-tap the cover disc on the right-side earphone to pause & play music Previous: Triple-tap the cover disc on the le� earphone Next: Triple-tap the cover disc on the right earphone Using one earphone: Double-tap the cover disc on the earphone to pause & play music x 3 x2 x3 x2 Call Control Answer Calls Reject Calls End Calls Using both earphones: Double-tap the cover disc on the right earphone to answer a call To reject a call, triple-tap the cover disc on either earphone To end a call, double-tap the cover disc on right earphone during the call Using one earphone: Double-tap the cover disc on the earphone to answer a call Charge Charge earphones: Earphone Low Ba�ery: Voice prompt “Ba�ery is Low” Charging: LED indicator on charging case turns white and flash slowly Charging Done: LED indicator on charging case turns off Put your earphones into the charging case and ensure the two metal contact points are well contacted, the charging box will automa�cally charge the earphones. Pair a new device Put your earphones into the charging case, and keep the charging case lid opened. Press and hold the pair bu�on in bo�om for 3 seconds un�l the red and white LED blinking. Then take out earphones; Your earphones will automa�cally enter pairing mode, and you may pair with a device using the steps described in the "Paring" sec�on. 3S Change Decoration Disc The decora�on disc of Bu�ons POP is changeable, user can match earbuds with different styles of decora�on discs according to personal preference. Enter Sleep Mode: The earphones will automa�cally enter sleep mode in case of failing to pair with a Bluetooth device, being taken off and not used, or being out of Bluetooth range for certain dura�on; Exit Sleep Mode: Put your earphones back into the charging case, and then take out again to exit sleep mode. Sleep Mode: Wearing Detection & Power Saving Mode Wearing Detec�on: Power Saving Mode: While music is played, the music will automa�cally be paused when you take off either one or both earphones and will resume when you put on the earphone(s) again. Enter Power Saving Mode: The earphones will automa�cally enter power saving mode if it is taken off and not used for certain dura�on and doesn’t put into charging box; Exit Power Saving Mode: Wear your earphones or put your earphones back into the charging case, and then take out again to exit power saving mode. Note: Tap control is not supported if your earphones are detected not be worn. During a phone call, the telephone receiver will be enabled when you take off both earphones, and the earphone speakers will be enabled when you put on either or both earphones. Safety Guide Warning: Electrical and electronic equipment, parts and ba�eries marked with this symbol must not be disposed together with normal household waste. They must be collected and disposed separately to protect the environment. Your BUTTONS retailer will advise you of the correct method of disposal in your country/region. Items in package: Silicon ear�ps x3 pairs USB Type C to Type C charging cable x1 Earbuds with charging box x1 Quick Start Guide x1 Exchangeable disc x2 pairs Brooch Accessory x1 Frequency: 20 ~ 20KHz Resistance: 16Ohm Speakers: 11mm biofibre composite element Noise reduc�on: up to 35dB (200Hz~1000Hz) ANC Mic: Analog Mic (×2), -38+/-1 dB at 94dB SPL@1kHz Digital Mic (×2)-26 +/-1 dBFS at 94dB SPL@1kHz Call Mic: Digital Mic-26 +/-1 dBFS at 94dB SPL@1kHz Ba�ery life: 6h (noise cancella�on enabled and medium sound volume) 8h (noise cancella�on disabled and medium sound volume) Earphone Ba�ery: 70mAh*2 Ba�ery of charging case: 480mAh Bluetooth version: v5.2 Bluetooth range: Over 12meters Weight: About 7.8g (each earphone) About 60g (charging case) Warranty period: 1 year Warning: Prolonged listening at high volume levels can cause hearing damage. Warning: Choking Hazard - small parts. Warning: This product contains magnets EU WARNING: Hereby Bu�ons declares that the radio equipment type [ POPBTN10 ] is in compliance with Direc�ve 2014/53/EU. This device may be operated in all member states of the EU. This device complies with part 15 of the FCC Rules. Opera�on is subject to the following two condi�ons: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired opera�on. Any changes or modifica�ons not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. NOTE: This 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 protec�on against harmful interference in a residen�al installa�on. This equipment generates, uses and …

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Beijing Techao Weijia Technology Limited Room 302, 3Rd Floor. Zone C, No. 5 Sanlitun West 5th Street, Chaoyang District, Beijing, China Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 06-28-2023 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: 2A83I-POPBTN10 [Beijing Techao Weijia Technology Limited] (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, (Applicant signature) (Junhua wang)

Beijing Techao Weijia Technology Limited Room 302, 3Rd Floor. Zone C, No. 5 Sanlitun West 5th Street, Chaoyang District, Beijing, China Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 06-28-2023 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2A83I-POPBTN10 [Beijing Techao Weijia Technology Limited] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, (Applicant signature) (Junhua wang)

Beijing Techao Weijia Technology Limited Agent Authorization Company: Beijing Techao Weijia Technology Limited Address: Room 302, 3Rd Floor. Zone C, No. 5 Sanlitun West 5th Street, Chaoyang District, Beijing, China Product Name: BUTTONS POP Model Number(s): POPBTN10 Product Description: BUTTONS POP 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: 2023-06-28 Name: Junhua wang Company: Beijing Techao Weijia Technology Limited

Beijing Techao Weijia Technology Limited Room 302, 3Rd Floor. Zone C, No. 5 Sanlitun West 5th Street, Chaoyang District, Beijing, China Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2023-06-28 Subject; Request for Confidentiality FCC ID: 2A83I-POPBTN10 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 Parts List Operational Description 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 Contact person: Junhua wang

Report No.: AGC03415221002AP03 Page 1 of 4 EXTERNAL PHOTOS WHOLE VIEW OF EUT TOP VIEW OF EUT Report No.: AGC03415221002AP03 Page 2 of 4 BOTTOM VIEW OF EUT FRONT VIEW OF EUT Report No.: AGC03415221002AP03 Page 3 of 4 BACK VIEW OF EUT LEFT VIEW OF EUT Report No.: AGC03415221002AP03 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.: AGC03415221002AP03 Page 1 of 7 INTERNAL PHOTOS Left - VIEW OF EUT(PORT) OPEN VIEW OF EUT Report No.: AGC03415221002AP03 Page 2 of 7 VIEW OF BATTERY INTERNAL VIEW OF EUT-1 BT Antenna Report No.: AGC03415221002AP03 Page 3 of 7 INTERNAL VIEW OF EUT-2 INTERNAL VIEW OF EUT-3 Report No.: AGC03415221002AP03 Page 4 of 7 INTERNAL VIEW OF EUT-4 Right- VIEW OF EUT(PORT) Report No.: AGC03415221002AP03 Page 5 of 7 OPEN VIEW OF EUT VIEW OF BATTERY Report No.: AGC03415221002AP03 Page 6 of 7 INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2 BT Antenna Report No.: AGC03415221002AP03 Page 7 of 7 INTERNAL VIEW OF EUT-3 INTERNAL VIEW OF EUT-4 ****************************************End of Report****************************************

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description BUTTONS POP Model Name POPBTN10 FCC ID 2A83I-POPBTN10 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 The left earphone: BR&EDR: P t =7.427dBm=5.53mW 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=(5.53mW / 5mm).[√2.480GHz)]=1.736<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. BLE: P t =-3.714dBm=0.43mW 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=(0.43mW / 5mm).[√2.480GHz)]=0.135<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. The right earphone: BR&EDR: P t =5.957dBm=3.94mW 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=(3.94mW / 5mm).[√2.480GHz)]=1.237<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. BLE: P t =-1.381dBm=0.73mW 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=(0.73mW / 5mm).[√2.480GHz)]=0.229<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 98 FCC Test Report Report No.: AGC03415221002FE02 FCC ID : 2A83I-POPBTN10 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : BUTTONS POP BRAND NAME : BUTTONS MODEL NAME : POPBTN10 APPLICANT : Beijing Techao Weijia Technology Limited DATE OF ISSUE : Nov. 24, 2022 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC03415221002FE02 Page 2 of 98 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Nov. 24, 2022 Valid Initial Release Report No.: AGC03415221002FE02 Page 3 of 98 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. BANDWIDTH .................................................................................................................................................. 20 8.1. MEASUREMENT PROCEDURE .............................................................................................................. 20 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 20 8.3. LIMITS AND MEASUREMENT RESULTS ............................................................................................... 20 9. CONDUCTED SPURIOUS EMISSION........................................................................................................... 36 9.1. MEASUREMENT PROCEDURE .............................................................................................................. 36 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 36 9.3. MEASUREMENT EQUIPMENT USED .................................................................................................... 36 9.4. LIMITS AND MEASUREMENT RESULT .................................................................................................. 36 10. MAXIMUM CONDUCTED OUTPUT POWER SPECTRAL DENSITY ........................................................ 61 10.1. MEASUREMENT PROCEDURE ............................................................................................................ 61 10.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................. 61 10.3. MEASUREMENT EQUIPMENT USED .................................................................................................. 61 10.4. LIMITS AND MEASUREMENT RESULT................................................................................................ 61 11. RADIATED EMISSION ................................................................................................................................. 69 11.1. MEASUREMENT PROCEDURE ............................................................................................................ 69 11.2. TEST SETUP .......................................................................................................................................... 70 11.3. LIMITS AND MEASUREMENT RESULT................................................................................................ 71 11.4. TEST RESULT ....…

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Report No.: AGC03415221002FE02 Page 76 of 98 The left earphone: Radiated emission above 1GHz EUT BUTTONS POP Model Name POPBTN10 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) 4804.00043.580.0843.6674-30.34 peak 4804.00035.740.0835.8254-18.18 AVG 7206.00038.692.2140.974-33.1 peak 7206.00031.452.2133.6654-20.34 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type EUT BUTTONS POP Model Name POPBTN10 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) 4804.00044.750.0844.8374-29.17 peak 4804.00034.450.0834.5354-19.47 AVG 7206.00038.562.2140.7774-33.23 peak 7206.00030.592.2132.854-21.2 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type Report No.: AGC03415221002FE02 Page 77 of 98 EUT BUTTONS POP Model Name POPBTN10 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) 4880.00044.510.1444.6574-29.35 peak 4880.00035.690.1435.8354-18.17 AVG 7320.00039.772.3642.1374-31.87 peak 7320.00031.842.3634.254-19.8 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type EUT BUTTONS POP Model Name POPBTN10 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) 4880.00045.860.144674-28 peak 4880.00038.520.1438.6654-15.34 AVG 7320.00040.412.3642.7774-31.23 peak 7320.00032.692.3635.0554-18.95 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type Report No.: AGC03415221002FE02 Page 78 of 98 EUT BUTTONS POP Model Name POPBTN10 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) 4960.00044.510.2244.7374-29.27 peak 4960.00035.690.2235.9154-18.09 AVG 7440.00038.482.6441.1274-32.88 peak 7440.00029.572.6432.2154-21.79 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type EUT BUTTONS POP Model Name POPBTN10 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) 4960.00042.570.2242.7974-31.21 peak 4960.00034.390.2234.6154-19.39 AVG 7440.00038.642.6441.2874-32.72 peak 7440.00029.482.6432.1254-21.88 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, Margin=Level-Limit. The “Factor” value can be calculated automatically by software of measurement system. All test modes had been tested. The BLE GFSK 2Mbps is the worst case and recorded in the report. Report No.: AGC03415221002FE02 Page 79 of 98 The right earphone: Radiated emission above 1GHz EUT BUTTONS POP Model Name POPBTN10 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) 4804.00043.630.0843.7174-30.29 peak 4804.00035.740.0835.8254-18.18 AVG 7206.00038.522.2140.7374-33.27 peak 7206.00031.412.2133.6254-20.38 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type EUT BUTTONS POP Model Name POPBTN10 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) 4804.00044.660.0844.7474-29.26 peak 4804.00034.580.0834.6654-19.34 AVG 7206.00038.492.2140.774-33.3 peak 7206.00030.352.2132.5654-21.44 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type Report No.: AGC03415221002FE02 Page 80 of 98 EUT BUTTONS POP Model Name POPBTN10 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) 4880.00044.820.1444.9674-29.04 peak 4880.00035.670.1435.8154-18.19 AVG 7320.00039.482.3641.8474-32.16 peak 7320.00031.412.3633.7754-20.23 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type EUT BUTTONS POP Model Name POPBTN10 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) 4880.00045.630.1445.7774-28.23 peak 4880.00038.560.1438.754-15.3 AVG 7320.00040.322.3642.6874-31.32 peak 7320.00032.272.3634.6354-19.37 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type Report No.: AGC03415221002FE02 Page 81 of 98 EUT BUTTONS POP Model Name POPBTN10 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) 4960.00044.570.2244.7974-29.21 peak 4960.00035.480.2235.754-18.3 AVG 7440.00038.762.6441.474-32.6 peak 7440.00029.682.6432.3254-21.68 AVG Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier. Value Type EUT BUTTONS POP Model Name POPBTN10 Temperature 25°C Relative Humidity 55.4% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 3 Antenna …

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致力于为客户提供专业级天线解决方案 Buttons Antenna Optimization Report Radio frequency: Chen Kehong Date: 2022-11-22 Contact: 19925137130 致力于为客户提供专业级天线解决方案 Radio frequency: Zeng Xianghao Date: October 12, 2021 Report version: V0.1 Project development environment Yusheng Communication's products cover almost all antenna applications of wireless terminal equipment, Including automobile antenna, high-precision surveying and mapping antenna, unmanned aerial vehicle ground and satellite data navigation, high-precision positioning antenna, wireless transmission of medical equipment, consumer antenna (mobile phone antenna, PAD, notebook computer antenna), Base station/indoor distributed antenna, smart wearable antenna (smart watch, TWS headset), security home antenna and various smart device antennas for wireless data transmission and wireless control, etc. We are moving from the Internet age to the intelligent age, and the country is building a digital society and a smart city. In the next 5-10 years, both the consumer electronics market and the Internet of Things market have great development potential. The field of wireless communication is very diversified. In the future, Yusheng will strive to provide customers with professional-grade product solutions with market competitiveness by relying on the advantages of the customer platform of the main antenna business and its comprehensive strength. 致力于为客户提供专业级天线解决方案 1 Brief introduction of project debugging Report version outline Passive parameters of antenna 2 3 3 Active parameters of antenna 4 Matching description 致力于为客户提供专业级天线解决方案 Brief introduction of project debugging Model Earphone Antenna type PIFA Frequency band and antenna material Main antenna Frequency band Material 2G - 3G - 4G - Other antennas BT 2402-2484MHZ fpc DRX - Performance requirements Execute according to customer requirements 致力于为客户提供专业级天线解决方案 Report version outline Report version Reporting time Problems solved in this antenna research and development V0.1 2022/10/17 Preliminary debugging v0.2 222/11/02 Optimization report v0.3 2022/11/22 Update antenna size 致力于为客户提供专业级天线解决方案 Passive parameters of antenna L-freespace R-freespace L-head/ear R-head/ear 致力于为客户提供专业级天线解决方案 Antenna pattern L R 致力于为客户提供专业级天线解决方案 Passive parameters of antenna Test L Test Point ID 1 2 3 4 5 6 7 8 9 Freq. (MHz) 2400 2410 2420 2430 2440 2450 2460 2470 2480 Efficiency (%) 21.6% 24.2% 28.0% 32.3% 34.1% 33.9% 32.0% 28.0% 26.5% Efficiency (dB) -6.6 -6.16 -5.53 -4.91 -4.62 -4.71 -4.85 -5.60 -5.74 Gain (dBi) -0.63 -0.26 0.36 1.08 1.14 1.30 1.36 1.27 0.59 Test R Test Point ID 1 2 3 4 5 6 7 8 9 Freq. (MHz) 2400 2410 2420 2430 2440 2450 2460 2470 2480 Efficiency (%) 23.4% 25.1% 27.5% 31.3% 35.0% 31.3% 28.9% 27.8% 27.1% Efficiency (dB) -6.30 -6.15 -5.89 -5.04 -4.55 -5.10 -5.51 -5.60 -5.60 Gain (dBi) -0.53 0.12 0.49 1.12 1.10 1.40 0.65 0.20 -0.21 致力于为客户提供专业级天线解决方案 Motherboard conduction data L R CHANNEL 0 39 78 0 39 78 max power (dBm) 9.24 9.45 9.58 9.68 9.47 9.50 sensitivity (dBm) -93 -93 -93 -93 -93 -93 致力于为客户提供专业级天线解决方案 Antenna OTA freespace L R CHANNEL 0 39 78 0 39 78 TRP (dBm) 3.62 4.35 4.57 3.62 4.57 4.29 TIS (dBm) -88.26 -88.79 -89.54 -88.69 -88.74 -89.07 致力于为客户提供专业级天线解决方案 Antenna OTA Head/ear L R CHANNEL 0 39 78 0 39 78 TRP (dBm) 0.18 0.35 0.57 0.33 0.41 0.44 TIS (dBm) -83.35 -83.19 -83.50 -82.15 -83.48 -83.84 致力于为客户提供专业级天线解决方案 Schematic diagram of head die placement 致力于为客户提供专业级天线解决方案 Antenna matching is as shown in the right picture, and the left and right ears match NC NC 0 ohm 致力于为客户提供专业级天线解决方案 Matters needing attention The positive and negative electrodes of the battery are placed according to the horizontal line of the arrow as shown in the figure, and the battery lines are placed as shown in the figure. 致力于为客户提供专业级天线解决方案 Antenna size Shenzhen Address: 4th Floor, Building 2, South Taiyun Chuanggu, Guangming Avenue, Guangming New District, Shenzhen Tel: 0755-23984257 Fax: 0755-86090455

Report No.: AGC03415221002AP02 Page 1 of 3 TEST SETUP PHOTOS The left earphone RADIATED EMISSION TEST SETUP BELOW 1GHz RADIATED EMISSION TEST SETUP ABOVE 1GHz Report No.: AGC03415221002AP02 Page 2 of 3 RF CONDUCTED TEST SETUP The right earphone RADIATED EMISSION TEST SETUP BELOW 1GHz Report No.: AGC03415221002AP02 Page 3 of 3 RADIATED EMISSION TEST SETUP ABOVE 1GHz RF CONDUCTED TEST SETUP ****************************************End of Report*************************************