2AIXN-BS531J2A-1TWS Bluetooth Headset

版本：V1.0 修改时间：2023-6-16 版本变更： 料号： 成品尺寸：73x73mm 颜色：1C+1C 材质：128g哑粉纸，正反面过哑油 页数：12P 装订方式：风琴折 4 Specifications Bluetooth codeWorking range Battery capacity (Earbuds) Charging time (Earbuds) Battery capacity (Charging case) Charging time (Charging case) Charging case charging cycles Play time (music)Talk time Standby time Driver size ModelBS531J2ABluetooth versionV5.3 SBC,AAC≥10米 40mAh Lithium Polymer 400mAh Lithium Polymer Input(Earbuds)Input(Charging case)DC5 ±0.2VDC5 ±0.25V ≤2h≤1.5h 2-3cycles ≥6.0h (50%volume) ≥4.0h (50%volume ) ≥60h φ8mm 0°C~45°C-20°C~60°C Frequency response20Hz~20KHz Charging case size (mm) Earbud size(mm) Weight (earbud)Weight (whole set)approx 3.6gapprox 33.8g 62.26x32.85 x25.16(±0.2) 17.55x23.7 x24.4(±0.2) Operation temperature Storage temperature ※ Before charging, please check if the charging cable specification can meet the input voltage requirements of this product; please use the charging cable provided.It may violate the warranty clause of this product and cause product damage, if use the wrong charging cable.Due to the tolerance of different measurement tools, the size and weight may be different; according to the user’s different habits and device settings, the above time may be different. BS531J2A Quick Start Guide Open the case lid with the earbuds inside, the earbuds are ready for pairing. Turn on Bluetooth on your phone, search for “BS531J2A” from the device list to complete pairing. 1 Bluetooth Pairing Pick your ear tips Proper size ear tips are very important for sound quality and comfort. Please try the ear tip of different sizes. Please note that different sizes of ear tips may be required for your left and right ears. ※ M size on the earbuds S LM BS531Z2L-2 Bluetooth MFB button Touch Controls Ta p Press and hold Play/Pause Gaming Mode on/off × 1 Previous song L 3 Voice Assistants × 3 6 5 4 No.FunctionOperationVoice Prompt × 1 Next song R 7 8 9 10 3s / 5s / 1 Open the case lidPower OnPower on 2 Put the earbuds back into the case and close lid Power OffPower off Low latency On/ Low latency Off × 4 × 2 × 2 Answer/End calls 11Reject calls2s Volume + More than1.5s R More than1.5s L Volume to maximum "Di" Volume to minimum "Di" Volume - 2 Wearing way ※ Volume up/down function can only be adjusted up to 8 frames by long press once. To adjust again, press and hold the MFB button for the second time. Charging Reset. ※ When the charging case is extremely low-energy, the charging case will stop charging the earphones, at that time you need to charge the charging case to charge the earphones. ※ The first light on the left of the charging case is LED1, followed by LED2; LED3; LED4, a total of four lights ※ After the earphone is put into the charging case, the charging case shows the power status. ※ After resetting, the earphone must be connected to the Bluetooth device again. Some Bluetooth devices may need to delete the pairing name of the original earphone to connect properly. keep the earphone in the off state, long press the MFB button for 8 seconds, the white light of the earphone blinks 6 times, restore factory settings successfully. 3 Indicator light always on； The indicator flashes.※ 1 Earbuds Charging 2 Charging case charging Charge case power status: LED1 Lower power LED1 Low power LED1,2 Medium power LED1,2,3 High power LED1,2,3,4 Higher power LED1, LED2 Low power LED1 Lower power LED1,2 LED3 Medium power LED1,2,3 LED4 High power LED1,2,3,4 Higher power Battery safety • The product is equipped with a non removable built-in battery. Do not replace the battery by yourself to avoid damaging the battery or product. Dispose of used batteries according to local instructions. • Do not disassemble or modify the battery, immerse in water or other liquids to avoid battery leakage, overheating, fire or explosion. • Do not drop, squeeze or puncture the battery. Avoid exposing the battery to external pressure, which may cause internal short circuit and overheating of the battery. Maintenance • When the product is not in use, please put it back into the charging case for charging. • Please charge the product every 3-6 months to avoid battery depletion due to long-time storage. • Please keep the product and its accessories dry, and do not use external heating equipment such as microwave oven or hair dryer to dry them. • Do not place the product and its accessories in areas where the temperature is too high or too low. • Before cleaning and maintenance, please turn off the product and disconnect with the power source. • Do not use chemicals, cleaning agents or detergents to clean the product or its accessories. Please use clean, dry soft cloth to do the clean. • Do not disassemble or modify the product and its accessories without authorization, otherwise the equipment and accessories will not be covered by our warranty. Please contact the authorized service center in case of product broken. Environmental protection • Please comply with the local regulations on the disposal and the recycling. Safety instructions Read through the safety instructions before using the product. Electronic equipment • Do not use this product in places where wireless devices are prohibited, otherwise it will interfere with other electronic devices or cause other hazards. Medical and health care equipment • Do not use this product in medical and health care places where wireless devices are prohibited, please follow the regulations of the places and turn off the product. • The radio waves generated by the product may affect the normal operation of implantable medical devices or personal medical devices, such as pacemakers, Cochlear implants, hearing aids, etc. If you use these medical devices, please consult their manufacturer for restrictions. • When using this product, please keep at least 15cm away from the implanted medical devices (such as pacemakers, cochlear implants, etc.). Hearing protection • When you listen to music or make call with this product, it is recommended to use the minimum…

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GUANGZHOU U&I TECHNOLOGY COMPANY LIMITED 4th Floor,15th Building,Vtrek Innovation Industrial Park,No.644 Shibei Road,Panyu District, Guangzhou, China Jun. 20, 2023 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject: Explanation of differences between product types FCC ID : 2AIXN-BS531J2A-1 Model Number: BS531J2A-1, B20, B20pro, B20plus, BS531J2A, BS531J2A-2, BS531J2A-3, BS531J2A-4, BS531J2A-5, BS531J2A-6, BS531J2A-7, BS531J2A-8, BS531J2A-9 To Whom It May Concern: We, The GUANGZHOU U&I TECHNOLOGY COMPANY LIMITED hereby declare that the models are identical except the appearance color. Except for the different above, no other modification is performed. Sincerely, Signature: Contact person: Paul He

GUANGZHOU U&I TECHNOLOGY COMPANY LIMITED Agent Authorization Company: GUANGZHOU U&I TECHNOLOGY COMPANY LIMITED Address: 4th Floor,15th Building,Vtrek Innovation Industrial Park,No.644 Shibei Road,Panyu District, Guangzhou, China Product Name: TWS Bluetooth Headset Model Number(s): BS531J2A-1, B20, B20pro, B20plus, BS531J2A, BS531J2A-2, BS531J2A-3, BS531J2A-4, BS531J2A-5, BS531J2A-6, BS531J2A-7, BS531J2A-8, BS531J2A-9 Product Description: TWS Bluetooth Headset 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: 2023-06-20 Name: Paul He Company: GUANGZHOU U&I TECHNOLOGY COMPANY LIMITED

Report No.: AGC01082230601AP02 Page 1 of 4 EXTERNAL PHOTOS ALL VIEW OF EUT TOP VIEW OF EUT Report No.: AGC01082230601AP02 Page 2 of 4 BOTTOM VIEW OF EUT FRONT VIEW OF EUT Report No.: AGC01082230601AP02 Page 3 of 4 BACK VIEW OF EUT LEFT VIEW OF EUT Report No.: AGC01082230601AP02 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.: AGC01082230601AP02 Page 1 of 6 INTERNAL PHOTOS OPEN VIEW OF EUT (Left) BATTERY VIEW OF EUT Report No.: AGC01082230601AP02 Page 2 of 6 INTERNAL VIEW OF EUT (FIGURE 1) INTERNAL VIEW OF EUT (FIGURE 2) Report No.: AGC01082230601AP02 Page 3 of 6 INTERNAL VIEW OF EUT (FIGURE 3) INTERNAL VIEW OF EUT (FIGURE 4) BT Antenna Report No.: AGC01082230601AP02 Page 4 of 6 OPEN VIEW OF EUT (Right) BATTERY VIEW OF EUT Report No.: AGC01082230601AP02 Page 5 of 6 INTERNAL VIEW OF EUT (FIGURE 1) INTERNAL VIEW OF EUT (FIGURE 2) Report No.: AGC01082230601AP02 Page 6 of 6 INTERNAL VIEW OF EUT (FIGURE 3) INTERNAL VIEW OF EUT (FIGURE 4) ****************************************End of Report************************************* BT Antenna

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION FCC ID 2AIXN-BS531J2A-1 Product Description TWS Bluetooth Headset Model Name BS531J2A-1, B20, B20pro, B20plus, BS531J2A, BS531J2A-2, BS531J2A-3, BS531J2A-4, BS531J2A-5, BS531J2A-6, BS531J2A-7, BS531J2A-8, BS531J2A-9 Frequency Band (Operating) WLAN: 2.412GHz ~ 2.462GHz WLAN: 5.18GHz ~ 5.32GHz / 5.50GHz ~ 5.70GHz WLAN: 5.745GHz ~ 5825GHz Bluetooth: 2.402GHz ~ 2.480GHz Others Device Category Portable (<20cm separation) Mobile (>20cm separation) Others: Antenna Diversity Single antenna Multiple antennas Max. Output Power -5.511dBm (Max) Antenna Designation FPC Antenna Antenna Gain 1.43dBi Minimum Assessment Distance 5mm Evaluation Applied MPE Evaluation SAR Exclusion Evaluation Result Pass 2. PORTABLE DEVICE EVALUATION METHOD AND LIMIT Following FCC KDB 447498 D01 “General SAR test exclusion guidance” The corresponding SAR Exclusion Threshold condition, listed below: 1) 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)] [if(GHz)] s 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.  The result is rounded to one decimal place for comparison The test exclusions are applicable only when the minimum test separation distance is ≤50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. 2) At 100 MHz to 6 GHz and for test separation distances > 50 mm, the SAR test exclusion threshold is determined according to the following: a) [Threshold at 50 mm in step 1) + (test separation distance - 50mm) ( f(MHz)/150)] mW, at 100MHz to 1500 MHz; b) [Threshold at 50 mm in step 1) + (test separation distance - 50 mm)-10] mW at > 1500 MHz and ≤6 GHz; 3) At frequencies below 100 MHz, the following may be considered for SAR test exclusion. a) The threshold at the corresponding test separation distance at 100 MHz in step 2) is multiplied by [1 + log(100/f(MHz))] for test separation distances > 50 mm and < 200 mm. b) The threshold determined by the equation in a) for 50 mm and 100 MHz is multiplied by 1/2 for test separation distances ≤50 mm. c) SAR measurement procedures are not established below 100 MHz. When SAR test exclusion cannot be applied, a KDB inquiry is required to determine SAR evaluation requirements for any test results to be acceptable. 3. MOBILE DEVICE EVALUATION METHOD AND LIMIT Human exposure to RF emissions from mobile devices (47 CFR §2.1091) may be evaluated based on the MPE limits adopted by the FCC for electric and magnetic field strength and/or power density, as appropriate, since exposures are assumed to occur at distances of 20 cm or more from persons. LIMITS FOR GENERAL POPULATION / UNCONTROLLED EXPOSURE Frequency Range (MHz) E-field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/cm 2 ) Averaging Time |E| 2 , |H| 2 or S (Minutes) 0.3 -- 1.34 614 1.63 (100)* 30 1.34 -- 30 824/f 2.19/f (180/f 2 )* 30 30 -- 300 27.5 0.073 0.2 30 300 -- 1500 -- -- f/1500 30 1500 -- 100,000 -- -- 1.0 30 *Note: 1. f= Frequency in MHz * Plane-wave Equivalent Power Density 2. The averaging time for General Population/Uncontrolled exposure to fixed transmitters is not applicable for mobile and portable transmitters. See 47 CFR §§2.1091 and 2.1093 on source-based time-averaging requirement for mobile and portable transmitters. S=PG/4πR² Where: S=power density P=power input to antenna G=power gain of the antenna in the direction of interest relative to an isotropic radiator R=distance to the center of radiation of the antenna 4. MEASUREMENT RESULT Test Mode Channel Frequency (MHz) Max Output power (dBm) Max Output power (mW) Calculation Value (Note 1) Threshold Value π /4-DQPSK BT_EDR 2402 -6.611 0.218 0.068 3.0 BT_EDR 2441 -5.928 0.255 0.080 3.0 BT_EDR 2480 -5.511 0.281 0.088 3.0 Note 1: Calculation Value =[(max. power of channel, mW)/(min. test separation distance, mm)] ·[√f(GHz)]. Fox example: 0.281/5*√2.480=0.088 ≤ 3.0 According to KDB447498 D01 V06, threshold at which no SAR required is ≤3.0 for 1-g SAR, separation distance is 5mm, and no simultaneous SAR measurement is required. 5. CONCLUSION Since Source-base time average power is below SAR test exclusion power thresholds, the SAR evaluation is not required.

深圳市合拓科技有限公司 样品承认书 SampleApprovedSheet 合拓（BT0032-V10）承认书 客户名称广州由我科技股份有限公司 客户机型BS531Z2L-1 品牌合拓自产HT-BT0032-V10 合拓判定审核组 制订审核批准承认书完成时间 钟晓鸣胡雪文戴庭庭 2023.4.7 由我（客户）判定审核组 承认书编号承认书提供时间 承认审核批准承认日期 评审项目：□承认书 4 份□规格书 / 图纸□检测报告□样品PCS□安规□HSF 评审结果：□接受□有条件接受□拒绝 ConfidentialInformation Page 2 1.Antennapicture ThereportmainlyprovidestheteststatusoftheelectricalpropertiesparametersofHT-BT0032-V10. TheHT-BT0032-V10antennaisaBTBand.TheantennaPictureandassemblyareshownbelow. 项次日期版次修订说明备注 12023.4.7A0首次发行 ConfidentialInformation Page 3 Antennapicture&assemblypicture 2.AntennaTestEquipmentIntroduction TestofantennainputcharacteristicsusingAgilentE5071CandAgilent5062Avector networkanalyzer;TheradiationpatternoftheantennaaretestedusingtheSatimostarlab 3DnearfieldAnechoicChamber,andtheinstrumentisusedtoagilent8960E5515and AgilentE4438C.Thetestcoordinatesofthedarkroomareasfollows: 3.ElectricalSpecification 3-2PassiveS11parameter MeasuringMethodisa50Ωcoaxialcableisconnectedtotheantenna.Thenthiscableis connectedtoanetworkanalyzertomeasuretheS11parameter,Keepingthisfixtureawayfrommetal atleast20cm. ConfidentialInformation Page 4 VSWR 3-3AntennaMatchingNetwork ConfidentialInformation Page 5 ConfidentialInformation Page 6 4.MechanicalSpecification: MechanicalConfiguration(Unit:mm) TheappearanceoftheantennaisaccordingtodrawingFigure8 ConfidentialInformation Page 7

Page 1 of 58 FCC Test Report Report No.: AGC01082230601FE03 FCC ID : 2AIXN-BS531J2A-1 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : TWS Bluetooth Headset BRAND NAME : N/A MODEL NAME : BS531J2A-1, B20, B20pro, B20plus, BS531J2A, BS531J2A-2, BS531J2A-3, BS531J2A-4, BS531J2A-5, BS531J2A-6, BS531J2A-7, BS531J2A-8, BS531J2A-9 APPLICANT : GuangZhou U&I Technology Company Limited DATE OF ISSUE : Jun. 19, 2023 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC01082230601FE03 Page 2 of 58 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Jun. 19, 2023 Valid Initial Release Report No.: AGC01082230601FE03 Page 3 of 58 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 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 Report No.: AGC01082230601FE03 Page 4 of 58 10.1. MEASUREMENT PROCEDURE ........................................................................................................... 37 10.2. TEST SETUP ......................................................................................................................................... 39 10.3. LIMITS AND MEASUREMENT RESULT ............................................................................................... 40 10.4. TEST RESULT...............................................................................................…

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Report No.: AGC01082230601AP01 Page 1 of 2 TEST SETUP PHOTOS RADIATED EMISSION TEST SETUP BELOW 1GHz RADIATED EMISSION TEST SETUP ABOVE 1GHz Report No.: AGC01082230601AP01 Page 2 of 2 RF CONDUCTED TES SETUP ****************************************End of Report*************************************