2AXQK-TX33Bluetooth Wireless Earbuds

L R L R Model TWS-TX33 User Manual Bluetooth Wireless Earbuds MADE IN CHINA Product Diagram Wearing diagram Left and right can be matched at will, light and flexible, comfort able. The earphone can be selected to fit the size of the earcap. When wearing the headset. gently rot ate it according to the picture below until it fi ts comfort ably, and it will not fall off. L R L R microphone earphone indicator light multi-f unction button slave earphone storage box microphone multi-f unction button earphone indicator light master earphone earphone indicator light Micro USB General Information 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 3.20 3.21 3.22 Model Stereo type Track system The control mode Active passive Bluetooth solution Bluetooth version Support Bluetooth profile Bluetooth working frequency TYP Bluetooth range TBR Power amplifier type S/N Frequency response Speaker type Microphone Battery Music time Talk time Charging input criteria Charging time Around 3.5 hours80% volume Around 4 hours90% volume DC5V 500mAh Around 2 hours TWS-TX33 Bluetooth headphones Stereo physical button control Active Default English speech Bluetooth V5.0 A2DP, AVRCP, HFP, HSP 2.402GHz-2. 480GHz -80dm ≤10m <10cm Chip built-in ≥75Db 60Hz-20KHz F8 True copper ring horn Patch Order Item Parameter Characteristi c Lit hium battery, 3.7V/50mAh;Charge BOX:350 mAh Product Features Product Use Method OneAutomatic start ing 5.1. Powering on and connecting Order Item Parameter Characteristi c FunctionOperation methodVoice promptLight display True wireless stereo Bluetooth headphones, dual wireless connection can be used separately (TWS) True wireless stereo Real wireless stereo, two-ear communication Two-ear communication Support for connection with Bluetooth devices stereo mono music playback (A2DP) Bluetooth music Support Bluetooth connection high definition communicationHFP Open the storage box, when both headphones are lit, remove them from the storage box, will turn on automatically Starting up Starting up The storage box turns on the blue light and the headphones turn on the red light. Bluetooth communication Support for controlling pause, play and next songAVRCP Control adjustment Support for iOS and some Android phone battery indicators Electric quantity indication 4.1 4.2 4.3 4.4 4.5 4.6 Method TwoManual power-on FunctionOperation methodVoice promptLight display Wait 2-5 seconds for automatic matching between the two headphones The headphone is now paired with the phone, turning on Bluetooth on the phone, searching for the Bluetooth device name " TWS-Tx33 " and clicking on the link Both earphones are off the light, the light is not on when using, and the blue light will flash when pressing the button. Tok tok tok Connection successful Primary and secondary earphones pairing Pairing with mobile phones The red and blue lights flash alt ernately of the primary earphone, the secondary earphone lights out. FunctionOperation methodVoice promptLight display Open the storage box, take out the headphone and press the MFB button for two seconds. (the matching method after start up is the same as method one) Starting up Starting upAlternating flashing red and blue lamp of primary and secondary earphones. Method ThreeHeadphone single use/primary and secondary headphone switching 5.2. Power off Notice FunctionOperation methodVoice promptLight display Factory default for automatic connection between the two headphones use. After the headphone is unpaired, turn on Bluetooth on your phone and search for the Bluetooth device name " TWS-Tx33 " and click on one of them. Headphone lights off, lights not on when using, the blue lights will flash when pressing the button. Connection break Connection successful Pairing Release and pairing of primary and secondary headphones Single headphone pairing with mobile phone Alternating flashing red and blue lamp of primary and secondary earphones. If there is no automatic paring between the two headphones, double-click the MFB key on one of the headphones as the primary ear, prompting a " pairing". Your headphone has only three minutes to connect to your phone/Bluetooth device, otherwise the headset will exit the paired mode and the headset will be switched back on and paired. Put the headset directly int o the storage box directly, the headphone will automatically shut down and charge. Press the MFB button for five seconds arbitrarily, and both headphones will be turned off simultaneously. The headphone is automatically turned off within five minutes when it is not connected to the phone. When one of the headphone’s battery is below 3.2 V, it will automatically shut down, needing to timely charge the headset. After the connection to your phone, please turn on the phone player to play music. 5.3. Automatic reconnection If your phone had ever connected to this headphone, please turn on the Bluetooth, and the headphone will automatically reconnect after it is turned on. If you leave the connection range between your phone and your headphone during use, it will automatically connect back within 3 minutes after you ret urn to the 10 meter effective range. 5.4. Music and phone calls 5.5. Charging Pause/Play music, click MFB once, (any headphone can be used to control). Charge the headset, put the headphone directly int o the storage box, the storage box indicator light will be on the blue light, while the headset indicator light will be on the red light. When the headphone is fully charged, the headset indicator light turns blue for 15 seconds and then goes out. Charge the storage box, use the micro USB charging wire to insert the connector of the charging box. After the battery is full, the four indicator lights of the charging box are always on. Switch to the next song, please double-click the right ear (R) MFB key. Switch to the last song, please double-click the left ear (L) MFB key. Answer the phone, please clic k MFB key once when you are calling, (…

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Differences Declaration To whom concern, We company shenzhenshishuangsikejiyouxiangongsi hereby declares: The product models TWS-TX33, TWS-DX33, TWS-A18 are identical in the same PCB layout, interior structure and electrical circuits, The differences are appearance color and model name for commercial purpose. Authorized signature: Date: 2021-03-10

shenzhenshishuangsikejiyouxiangongsi DATE : 2021-03-10 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2AXQK-TX33 Product Name: Bluetooth Wireless Earbuds Request for Confidentiality 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 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 pursuantto 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. Signature: Name: jun zhang Title: CEO Company: shenzhenshishuangsikejiyouxiangongsi

DATE : 2021-03-10 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Jason Wu of Global United Technology Services Co., Ltd.and No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with shenzhenshishuangsikejiyouxiangongsi and changchunzhonglu33hao101gongmingshequ shenzhenshiguangmingou(qu)gongmingjiedao, Shenzhen, China Signature: Name: jun zhang Title: CEO Company: shenzhenshishuangsikejiyouxiangongsi

Product Name: Bluetooth Wireless Earbuds Model No.: TWS-TX33, TWS-DX33, TWS-A18 FCC ID: 2AXQK-TX33 The device have left and right earphones, the left and right earphones are electrically identical. Signature: Name: jun zhang Title: CEO Company: shenzhenshishuangsikejiyouxiangongsi

Label Label:15mm*0.8mm Model Name：TX33 FCC ID :2AXQK-TX33 Made in China

FCC ID: 2AXQK-TX33 RF Exposure Evaluation According to KDB 447498 and part 2.1093，Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(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 The result is rounded to one decimal place for comparison Here, For BT Max Power(dBm) Max Power(mW) Frequency(MHz) Min. distance(mm) Calc. thresholds limit 1.09 1.29 2402 5 0.400 3.0 So a SAR test is not required

Global United Technology Services Co., Ltd. Report No.: GTSL202103000006F01 Authorized Signature: Robinson Luo Laboratory Manager This results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Page 1 of 47 1 Cover Page TEST REPORT (Bluetooth) Applicant: shenzhenshishuangsikejiyouxiangongsi Address of Applicant: changchunzhonglu33hao101gongmingshequ shenzhenshiguangmingou(qu)gongmingjiedao, Shenzhen, China Manufacturer/ Factory: Shenzhen blue baby Intelligent Technology Co.,Ltd Address of Manufacturer/ Factory: 603, 6th floor, building a, Jingfu Industrial Park, hanghang Road, Sanwei community, Hangcheng street, Bao'an District, Shenzhen, China Equipment Under Test (EUT) Product Name: Bluetooth Wireless Earbuds Model No.: TWS-TX33, TWS-DX33, TWS-A18 FCC ID: 2AXQK-TX33 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Date of sample receipt: March 01, 2021 Date of Test: March 02-09, 2021 Date of report issued: March 10, 2021 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. Report No.: GTSL202103000006F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 2 of 47 2 Version Version No. Date Description 00 March 10, 2021 Original Prepared By: Date: March 10, 2021 Project Engineer Check By: Date: March 10, 2021 Reviewer Report No.: GTSL202103000006F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 3 of 47 3 Contents Page 1 COVER PAGE ...........................................................................................................................................1 2 VERSION ...................................................................................................................................................2 3 CONTENTS ...............................................................................................................................................3 4 TEST SUMMARY ......................................................................................................................................4 5 GENERAL INFORMATION .......................................................................................................................5 5.1 GENERAL DESCRIPTION OF EUT ..........................................................................................................5 5.2 TEST MODE .........................................................................................................................................7 5.3 DESCRIPTION OF SUPPORT UNITS ........................................................................................................7 5.4 DEVIATION FROM STANDARDS ..............................................................................................................7 5.5 ABNORMALITIES FROM STANDARD CONDITIONS ....................................................................................7 5.6 TEST FACILITY.....................................................................................................................................7 5.7 TEST LOCATION...................................................................................................................................7 5.8 ADDITIONAL INSTRUCTIONS ..................................................................................................................7 6 TEST INSTRUMENTS LIST ......................................................................................................................8 7 TEST RESULTS AND MEASUREMENT DATA .....................................................................................10 7.1 ANTENNA REQUIREMENT ....................................................................................................................10 7.2 CONDUCTED EMISSIONS ....................................................................................................................11 7.3 CONDUCTED PEAK OUTPUT POWER ...................................................................................................14 7.4 20DB EMISSION BANDWIDTH ..............................................................................................................18 7.5 CARRIER FREQUENCIES SEPARATION .................................................................................................22 7.6 HOPPING CHANNEL NUMBER .............................................................................................................26 7.7 DWELL TIME ......................................................................................................................................28 7.8 BAND EDGE.......................................................................................................................................30 7.8.1 Conducted Emission Method ......................................................................................................30 7.8.2 Radiated Emission Method .........................................................................................................34 7.9 SPURIOUS EMISSION .........................................................................................................................37 7.9.1 Conducted Emission Method ......................................................................................................37 7.9.2 Radiated Emission Method .........................................…

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Radia ted Emission Conducted Emission