2AW54-S4TWS headset

User manual Thank you for choosing and using this TWS Bluetooth headset. This manual will help you operate this Bluetooth headset. Before using the Bluetooth headset, you need any Bluetooth function of your mobile phone or other devices. This product can be used as a pair or used separately. Enrich and enhance your lifestyle, enjoy the fun of music anytime, anywhere. Product appearance picture Product parameters; 1. Jerry solution, V5.0 version, using 2.4GHZ Bluetooth frequency band. 2. The left and right earphones have built-in 40mAh lithium batteries, which can be recharged for about 500 times. 3. Bluetooth distance; 360-degree straight line distance of 12 meters without obstacles. 4. Endurance; listen to music c ontinuously for 3.5 hours in both ears a nd talk for about 3 hours. 5. Headphone charging; magnetic charging storage box, with charging base, base battery capacity 300mAh. 6. The earphone has a built-in -38db+/-3db high sensitivity MIC, 6mm high-fidelity speaker. 7. Support protocol; A2DP, HSP, HFP, AVRCP. Decoding method; SBC 8. Support android and iphone battery display. 9. Real-time monitoring of earphone voltage, low battery warning prompt, automatic shutdown of ultra-low voltage. 10. Charging box size; 60mm*47mm*28.5mm---headphone size; 11. 21.9mm*15.4mm*23.0mm---product weight-45g Instructions 1. Earphone pairing The headset ha s completed the pairing process whe n it leaves the factory, and the user can automatically pair with the L/R headset while using it; if there is no mobile phone or Bluetooth device connected within five minutes, the headset will automatically shut down (save power). 2. Bluetooth connection Turn on the phone and t urn on Bluetoot h, search for "S4", and c lick pair to connect. As shown; 3. Music play/pause, After the Bluetooth connection is successful, open the music player (such a s Kugou Music, Tiantian Jingtu, the mobile phone's ow n player, etc.), and you can now play the music in the mobile phone. If you need to pause, touch the L/R headset touch area twice. 4. Music previous/next song In the process of listening to music, if you need to sw itch songs, touch the L earphone touch area 3 times to switch to the previous song, and touch the R earphone touch area 3 times to switch to the next song. 5. Answer/hang up the call, reject the call In the process of listening to music, if t here is a call coming in, touch the L/R earphone touch area twice to answer it. After receiving the call, touch the L/R earphone touch area twice to hang up the call. If there is an incoming call, I don’t want to answer it. Long press the L/R touch area for 1 second and release it to reject the call. 6. Start voice control (SIRI function) During the Bluetooth standby proce ss, long press the L/R touch area for 1 second and release it to activate the language control function. 7. Product charging When the headset is use d to low battery, the headset may have a low battery warning sound, which w ill prompt once ever y 20 sec onds until the ultra-low battery headset automatically shuts down. At this time, you need to put the earphone s into the charging box to charge, and put the L/R earphones into the corresponding positions of the charging box to charge. The red light of the earphone is always on during the c harging process, and t he red light of the fully charged earphone is off. The charging box can charge the Bluetooth headset about 3.5 times. Precautions; 1. During use, in order to protect your hearing, do not turn the volume to the maximum. 2. Please turn off the Bluetooth headset and put it in the c harging box before boarding. This Bluetooth headset cannot be used in the aircraft. 3. Do not make any modification or attempt to disassemble this Bluetooth headset. 4. Do not use this product in a humid environment or in the rain. 5. Do not clean the product when it is charging. 6. Never use corrosive cleaners to clean the charging box or earphones. 7. Do not expose this product to direct sunlight. 8. If the product is not used for a long time, it should be placed in a dry place to avoid extreme temperature and dust, and the charging case should be charged at least once a month to extend the battery life. Warning: Changes or modifications to this unit not expre ssly approved by the party responsible for compliance could void the user’s authority to operate the equipment. NOTE: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. FCC Statement: This equipment has bee n tested and found to comply with t he limit s for a Class B digital device, pur suant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a reside ntial installation. This equipme nt generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipme nt does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: —Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/TV technician for help. RF exposure compliance statement: This device has been evaluated to meet the general RF exposure requirement

Shenzhen Blue Times Technology Co.,Ltd Agent Authorization Company: Shenzhen Blue Times Technology Co.,Ltd Address: B Block,Taixinglong Tech. Zone,Hezhou,Xixiang Town,Bao'an District, Shenzhen, China 518126 Product Name: TWS headset Model Number(s): S4 Product Description: TWS 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: Aug. 12, 2020 Name: Allen Zhang Title: manager Company: Shenzhen Blue Times Technology Co.,Ltd

Shenzhen Blue Times Technology Co.,Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Aug. 12, 2020 Subject; Request for Confidentiality FCC ID: 2AW54-S4 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, Signature: Name: Allen Zhang Title: manager

SIZE:5*12mm FCC ID: 2AW54-S4

ANTENNA Battery

RF Exposure Evaluation Test report On Behalf of Shenzhen Blue Times Technology Co.,Ltd For TWS headset Model No.: S4 FCC ID: 2AW54-S4 Prepared for : Shenzhen Blue Times Technology Co.,Ltd B Block,Taixinglong Tech. Zone,Hezhou,Xixiang Town, Bao'an District, Shenzhen, China 518126 Prepared By : Shenzhen HUAK Testing Technology Co., Ltd. 1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park, Fuhai Street, Bao'an District, Shenzhen City, China Date of Test: Jul. 28, 2020 ~ Aug. 10, 2020 Date of Report: Aug. 10, 2020 1 General Description of EUT Product Name: TWS headset Model/Type reference: S4 FCC ID 2AW54-S4 Hardware Version: V01 Software Version: V1.5 Version: Supported EDR Modulation: GFSK, π/4DQPSK Operation frequency: 2402MHz~2480MHz Channel number: 79CH Channel separation: 1MHz Antenna type: Chip Antenna Antenna gain: -0.58 dBi Power supply: DC 3.7V from battery 2 RF Exposure Compliance Requirement 2.1 Standard Requirement According to KDB447498D01 General RF Exposure Guidance v06 4.3.1. Standalone SAR test exclusion considerations Unless specifically requi red 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 correspondi ng SAR Exclusion Thres hold condition, listed below, is satisfied. 2.2 Limits 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 17 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 3 EUT RF Exposure GFSK Channel Maximum Peak Conducted Output Power (dBm) Tune up tolerance (dBm) Maximum tune-up Power Calculated value Exclusion threshold (dBm) (mW) Lowest (2402MHz) -6.189 -6±1 -5.0 0.316 0.098 3.0 Middle (2441MHz) -5.160 -5±1 -4.0 0.398 0.124 Highest (2480MHz) -4.532 -4±1 -3.0 0.501 0.158 Conclusion: the calculated value ≤3.0, SAR is exempted. π/4DQPSK Channel Maximum Peak Conducted Output Power (dBm) Tune up tolerance (dBm) Maximum tune- up Power Calculated value Exclusion threshold (dBm) (mW) Lowest (2402MHz) -5.380 -6±1 -5.0 0.316 0.098 3.0 Middle (2441MHz) -4.275 -5±1 -4.0 0.398 0.124 Highest (2480MHz) -3.424 -4±1 -3.0 0.501 0.158 Conclusion: the calculated value ≤3.0, SAR is exempted. Remark: The Max Conducted Peak Output Power data refer to report Report No.: HK2008072127-E

Page 1 of 54 Report No.: HK2008072127-E Prepared for : Shenzhen Blue Times Technology Co.,Ltd B Block,Taixinglong Tech. Zone,Hezhou,Xixiang Town,Bao'an District, Shenzhen, China 518126 Prepared By : Shenzhen HUAK Testing Technology Co., Ltd. 1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park, Fuhai Street, Bao'an District, Shenzhen City, China Date of Test: Jul. 28, 2020 ~ Aug. 10, 2020 Date of Report: Aug. 10, 2020 Report Number: HK2008072127-E TEST REPORT FCC PART 15 SUBPART C 15.247 Test report On Behalf of Shenzhen Blue Times Technology Co.,Ltd For TWS headset Model No.: S4 FCC ID: 2AW54-S4 Page 2 of 54 Report No.: HK2008072127-E TEST RESULT CERTIFICATION Applicant’s name .................. : Shenzhen Blue Times Technology Co.,Ltd Address ................................... : B Block,Taixinglong Tech. Zone,Hezhou,Xixiang Town,Bao'an District, Shenzhen, China 518126 Manufacture's Name............. : Shenzhen Blue Times Technology Co.,Ltd Address ................................... : B Block,Taixinglong Tech. Zone,Hezhou,Xixiang Town,Bao'an District, Shenzhen, China 518126 Product description Trade Mark .............................. : N/A Product name.......................... : TWS headset Model and/or type reference . : S4 Standards............................... : 47 CFR FCC Part 15 Subpart C 15.247 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test .......................................... : Date (s) of performance of tests ............ : Jul. 28, 2020 ~ Aug. 10, 2020 Date of Issue .......................................... : Aug. 10, 2020 Test Result ............................................. : Pass Prepared by: Project Engineer Reviewed by: Project Supervisor Approved by: Technical Director Page 3 of 54 Report No.: HK2008072127-E Table of Contents Page 1. SUMMA RY ........................................................................................................................................................................................... 4 1.1. TEST STANDARDS....................................................................................................................................................................... 4 1.2. TEST DESCRIPTION.......................................................................................................................................................................... 4 1.3. TEST FACILITY ................................................................................................................................................................................. 5 1.4. STATEMEN T OF THE MEASUREMENT UNCERTAINTY............................................................................................................................ 5 2. GENERAL INFORMATION .................................................................................................................................................................. 6 2.1. ENVIRONMENTAL CONDITIONS ........................................................................................................................................................ 6 2.2. GENERAL DESCRIPTION OF EUT ...................................................................................................................................................... 6 2.3. DESCRIPTION OF TEST MODES AND TEST FREQUENCY ...................................................................................................................... 7 2.4. EQUIPMENTS USED DURING THE TEST ............................................................................................................................................. 7 2.5. RELATED SUBMITTAL(S) / GRANT (S) ............................................................................................................................................... 9 2.6. MODIFICATIONS ............................................................................................................................................................................. 9 2.7. DESCRIPTION OF TES T S ETUP .................................................................................................................................................. 9 2.8. DESCRIPTION OF SUPPORT UNITS .................................................................................................................................................... 9 3. TEST CONDITIONS AND RESULTS ..................................................................................................................................................10 3.1. CONDUCTED EMISSIONS TEST .......................................................................................................................................................10 3.2. RADIATED EMISSIONS AND BAND EDGE .........................................................................................................................................13 3.3. MAXIMUM PEAK CONDUCTED OUTPUT POWER ............................................................................................................................24 3.4. 20DB BANDWIDTH.......................................................................................................................................................................27 3.5. FREQUENCY SEPARATION ..............................................................................................................................................................30 3.6. NUMBER OF HOPPING FREQUENCY .................................................................................…

Text truncated - open the document above for the full version.

30MHz-1000MHz Above 1000MHz Conducted Emission