2ARUDS310W3.1 Channel Sound Bar with Wireless Subwoofer

Quick Start GuideS4310 3.1 Channel Sound Bar with Dolby Audio ™ , DTS ® Virtual:X ™ , and Wireless Subwoofer y , , S ubwoofer 1 1 Register Your Product Register your TCL Sound Bar to receive the latest news on product releases, promotional offers, and more!* Enjoy exclusive benefits with registration: Text a photo of the camera icon to 71403 Or register online at register.tcl.com Need help? Visit photoregister.com/help or text HELP to 71403 Text to Register Expedited support and service Insider tips on your sound bar Exclusive offers and promotions Verification of ownership *Only Available to U.S. Customers TCLSBSS 2 Make sure you read all the safety information before you use this product. Warning: To avoid the danger of suffocation, keep plastic packaging away from pets, babies, and children. Do not use packaging bags in cribs, beds, carriages, or playpens. User Manual can be found at www.tcl.com/us on the specific product page in the “Download” section. 2 What's in the box (Cable length: 4 ft. 11") (Cable length: 9.8") Sound bar Wall mount template Wall anchor x 4 HDMI cable IR pass-through cable Subwoofer Safety instru ctions Safety leaflet Warranty card Warranty card QSG Quick Start Guide Remote control AAA battery x 2 Wall mount screw x 2 Wall mount bracket x 2 Screw × 4 (for installing the wall mount brackets) Power cord x 2 (Cable length: 4 ft. 11") 6 7 AUX input connectorIR input connectorAUX VA input connector AC input power connector Optical input connectorUSB Type A connectorHDMI ARC connector Short Press: Select Bluetooth modeLong press: Bluetooth Pairing Short press: Switch input sources(HDMI-ARC/Optical/AUX/AUX VA/USB/Bluetooth)Long press: Enter subwoofer pairing(If subwoofer disconnected) Press to increase or decrease the volume level. Volume buttons: Source button: Power button: Bluetooth button: Short Press: Power On/SleepLong Press: Power Off 3 6543217 3a Overview Input Source LED Indicator: HDMI-ARC: MagentaOptical: YellowAUX: GreenAUX VA: OrangeUSB: CyanBluetooth: Blue 4 3b Overview The subwoofer is now connected to the sound bar. Press and hold the button on the subwoofer for 3 seconds until an amber light begins flashing above the pair button. 1.2.3. Press and hold the button on the sound bar until a yellow LED indicator flashes on the sound bar. After a short while, the sound bar LED will turn green and the subwoofer LED will turn solid. The subwoofer will pair automatically with sound bar upon first use. In case of a problem, take the following steps to manually pair: 5 Battery type: 1.5V AAA battery x 2 4b Use the Remote 4a Install or replace the remote batteries Warning: Do not expose batteries to excessive heat such as sunshine, fire, or the like. Keep new and used batteries away from children. For disposal or recycling information, please contact your local authorities.CAUTION: Danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type. Short press: mute / unmute the sound Short press to turn on/off DTS Virtual:X Short Press: switch to Voice Enhance Short press to enter the Bass Boost Menu Short press to enter the treble sound effect Increase or decrease treble with / button Short press to adjust the bass sound effectIncrease or decrease bass with / button Short press: Switch input sound mode Standard, Voice, Music, Movie, Game, Sports 216 13 12 11 10 4 89 375 Increase volumeDecrease volumePlay previous music; turn to previous itemPlay next music; turn to next itemPlay/Pause music Short press to turn on/off DTS TruVolumeShort press to enter Surround Enhance Short press: power on / sleepLong press: power off Short press: Switch input sources HDMI-ARC/Optical/AUX/AUX VA/USB/Bluetooth Long press: Bluetooth Pairing Short press: select Bluetooth mode 6 5 Sound Bar LED Display Remote Control Sound bar Action Power off/SleepPower OnMute soundBluetooth PairingSourceDTS Virtual:X/TruVolume Voice EnhanceBass Boost / NightSurround EnhanceSound Mode LED Behavior on Sound bar Treble Adjustment Bass Adjustment Volume up/downSkip/Previous Input Source LED Indicator:HDMI ARC: Magenta Optical: YellowAux: GreenAux VA: OrangeUSB: CyanBluetooth: Blue Power Off: All LEDs light turn on and turn off from the sides to the center. Power On: LEDs will turn on from the center to the sides. Mute On: Center LED will flash several times. Mute Off: Current Volume Level will be shown.Blue LED will flash rapidlyVolume Up: LEDs will gradually turn on from the center to the sidesVolume Down: LEDs will gradually turn off from the sides to the centerSkip: LEDs move from the left to the rightPrevious: LEDs move from the right to the leftEnabled: LEDs will turn on from the center to the sides. Disabled: All LEDs light turn on and turn off from the sides to the center.Long Press: Enter Voice Announcment Volume adjustmentUse UP/DOWN keys to adjust three different levels: Mute/Default/HighShort Press: Preset the current Voice Enhance levelUse UP/DOWN keys to adjust four different levels. Long Press: Enable/Disable Night mode with voice broadcastShort Press: Show current Bass Boost levelUse UP/DOWN keys to adjust between four different levels.Short Press: Show current Surround Enhance levelUse UP/DOWN keys to adjust between four different levels.Long Press: Turn on or turn off AUX voice assistant. Short Press: Show current Treble level.Increase/Decrease using UP/DOWN keys to adjust thirteen different levels.Short Press: Show current Bass level.Increase/Decrease using UP/DOWN keys to adjust thirteen different levels.Press to switch sound mode in following order: Standard / Voice / Music / Movie / Game / Sports 7 < 9.8' 6a Place your Sound Barand Subwoofer The ideal place to position the Sound Bar is centered underneath your TV. Note: Do not place your sound bar in a location exposed to direct sunlight, heat, fire, or moisture. Required tools: Place the included wall mount template on the wall. Make sure the wall mount template is at least 2 inches below th…

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TCL Entertainment Solutions Limited * the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter DATE Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2ARUDS310W Per section 2.911(d)(7) of the FCC rules, TCL Entertainment Solutions Limited (“the applicant”) certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: Company Name: TTE Technology, Inc. Physical U.S. Company Address: 189 Technology Dr Irvine, CA 92618 United States FCC Registration Number: 0032618449 Contact Person: Mr Jonathan King Agent Email Address: [email protected] The above contact person accepts the obligation for service of process. The applicant accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Applicant Signed: Agent Signed (if different to Applicant): Printed name: Amber wang Printed name: [email protected] Title: engineer Title: V.P Cooperate and Legal Affairs Company Name: TCL Entertainment Solutions Limited Company Name: TTE Technology, Inc. Date: 3/3/2023 Date: 3/3/2023

TCL Entertainment Solutions Limited Covered Equipment Certification Attestation Letter DATE Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2ARUDS310W TCL Entertainment Solutions 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. Signed: Name: Amber wang Title: engineer Company: TCL Entertainment Solutions Limited Date: 3/7/2023

TCL Entertainment Solutions Limited Covered Equipment Certification Attestation Letter DATE Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2ARUDS310W TCL Entertainment Solutions 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. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. Signed: Name: Amber wang Title: engineer Company: TCL Entertainment Solutions Limited Date: 3/7/2023

TCL Entertainment Solutions Limited DATE : 2023.3.7 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2ARUDS310W Product Name: 3.1 CH Sound Bar with wireless subwoofer Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...)  Schematics  Block diagram  Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. <Signature> Name: Amber wang Title: engineer Company: TCL Entertainment Solutions Limited

Date:2023.3.7 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Compliance Testing, LLC to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). Sincerely, <Signature> Name: Tony Tang Title: EMC Engineer Company: EST Technology Co., Ltd.

TCL Entertainment Solutions Limited DATE : 2023.3.7 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint EST Technology Co., Ltd. Address: Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China (Name of Agent company name and address) 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 TCL Entertainment Solutions Limited Address: 7/F, building 22E, 22 science park east avenue Hong Kong science park, SHATIN, N.T. ,Hong Kong, China (Applicant Name and address) <Signature> Name: Amber wang Title: engineer Company: TCL Entertainment Solutions Limited

TCL Entertainment Solutions Limited I, the signer, In addition to the model name, PCB Layout, components and component layout, all electrical construction and mechanical construction. They are identical except model name. Product Name: 3.1 Channel Sound Bar with wireless subwoofer Model Number: S643W Additional Model: S310W, S4310, S643WE, S643WK, S643W* (*can be any numerica number"0~9" or alphebtical number "A~Z") FCC ID：2ARUDS310W <Signature> Name: Amber wang Title: engineer Company: TCL Entertainment Solutions Limited

External Photos M/N: S643 External Photos M/N: S643 External Photos M/N: S643 External Photos M/N: S643

S643W S643W S643W-SW S643W-SW

Internal Photos M/N: S643 Internal Photos M/N: S643 Internal Photos M/N: S643 Internal Photos M/N: S643 Internal Photos M/N: S643 Internal Photos M/N: S643 Internal Photos M/N: S643

FCC ID: 2ARUDS310W EST Technology Co. ,Ltd Report No. ESTE-R2303028 Page 1 of 4 FCC 47 CFR MPE REPORT TCL Entertainment Solutions Limited 3.1 Channel Sound Bar with Wireless Subwoofer Model Number: S643W Additional Model: S310W, S4310, S643WE, S643WK, S643W* (*can be any numerica number"0~9" or alphebtical number "A~Z") FCC ID: 2ARUDS310W Applicant: TCL Entertainment Solutions Limited Address: 7/F, building 22E, 22 science park east avenue Hong Kong science park, SHATIN, N.T. ,Hong Kong, China Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2303028 Date of Test: Feb. 20~Mar. 04, 2023 Date of Report: Mar. 06, 2023 FCC ID: 2ARUDS310W EST Technology Co. ,Ltd Report No. ESTE-R2303028 Page 2 of 4 Maximum Permissible Exposure 1. Applicable Standards Systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess limit for maximum permissible exposure. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as a mobile device whereby a distance of 0.2m normally can be maintained between the user and the device. 1.1. Limits for Maximum Permissible Exposure (MPE) (a) Limits for Occupational/Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/cm 2 ) Averaging Times ︱E︱ 2 ,︱H︱ 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842/f 4.89/f (900/f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-10000 5 6 (b) Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/cm 2 ) Averaging Times ︱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)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-10000 1.o 30 Note: f=frequency in MHz; *Plane-wave equivalent power density FCC ID: 2ARUDS310W EST Technology Co. ,Ltd Report No. ESTE-R2303028 Page 3 of 4 1.2. MPE Calculation Method E (V/m) = d G × P × 30 Power Density: Pd (W/m 2 ) = 377 E 2 E = Electric Field (V/m) P = Peak RF output Power (W) G = EUT Antenna numeric gain (numeric) d = Separation distance between radiator and human body (m) The formula can be changed to Pd = 2 d × 377 G × P × 30 From the peak EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the gain of the used antenna, the RF power density can be obtained FCC ID: 2ARUDS310W EST Technology Co. ,Ltd Report No. ESTE-R2303028 Page 4 of 4 2. Conducted Power Result Mode Frequency (MHz) Peak output power (dBm) Peak output power (mW) GFSK 2402 3.94 2.477 2441 3.77 2.382 2480 4.15 2.600 π/4 DQPSK 2402 4.33 2.710 2441 4.44 2.780 2480 4.65 2.917 8-DPSK 2402 4.33 2.710 2441 4.40 2.754 2480 4.65 2.917 BLE 1M 2402 3.49 2.234 2440 3.74 2.366 2480 4.01 2.518 BLE 2M 2402 3.73 2.360 2440 3.98 2.500 2480 4.28 2.679 3. Calculated Result and Limit Mode Peak output power (dBm) Target power (dBm) MAX Target power (dBm) Antenna gain Power Density (S) (mW /cm 2 ) Limited of Power Density (S) (mW /cm 2 ) Test Result (dBi) (Linear) GFSK 4.15 4±1 5 2.29 1.694 0.0011 1 Complies π/4 DQPSK 4.65 4±1 5 2.29 1.694 0.0011 1 Complies 8-DPSK 4.65 4±1 5 2.29 1.694 0.0011 1 Complies BLE 1M 4.01 4±1 5 2.29 1.694 0.0011 1 Complies BLE 2M 4.28 4±1 5 2.69 1.858 0.0012 1 Complies End of Test Report

FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 1 of 83 FCC PART 15C TEST REPORT FOR CERTIFICATION On Behalf of TCL Entertainment Solutions Limited 3.1 Channel Sound Bar with Wireless Subwoofer Model Number: S643W Additional Model: S310W, S4310, S643WE, S643WK, S643W* (*can be any numerica number"0~9" or alphebtical number "A~Z") FCC ID: 2ARUDS310W Applicant : TCL Entertainment Solutions Limited Address: 7/F, building 22E, 22 science park east avenue Hong Kong science park, SHATIN, N.T. ,Hong Kong, China Prepared By: EST Technology Co., Ltd. Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China Tel: 86-769-83081888-808 Report Number: ESTE-R2303026 Date of Test: Feb. 20~Mar. 04, 2023 Date of Report: Mar. 06, 2023 FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 2 of 83 TABLE OF CONTENTS Description Page TEST REPORT VERIFICATION......................................................................................................................... 3 1. GENERAL INFORMATION ................................................................................................................. 5 1.1. Description of Device (EUT) ........................................................................................................... 5 1.2. Antenna Information ........................................................................................................................ 5 1.3. Information of RF Cable .................................................................................................................. 5 2. SUMMARY OF TEST ......................................................................................................................... 6 2.1. Summary of test result ...................................................................................................................... 6 2.2. Test Facilities ................................................................................................................................... 7 2.3. Measurement uncertainty ................................................................................................................. 8 2.4. Assistant equipment used for test ..................................................................................................... 8 2.5. Block Diagram ................................................................................................................................. 8 2.6. Test mode ......................................................................................................................................... 9 2.7. Channel List ................................................................................................................................... 10 2.8. Power Setting of Test Software ...................................................................................................... 10 2.9. Test Equipment ............................................................................................................................... 11 3. MAXIMUM PEAK OUTPUT POWER ................................................................................................. 13 3.1. Limit ............................................................................................................................................... 13 3.2. Test Setup ....................................................................................................................................... 13 3.3. Spectrum Analyzer Setting ............................................................................................................. 13 3.4. Test Procedure ................................................................................................................................ 13 3.5. Test Result ...................................................................................................................................... 13 4. 20 DB BANDWIDTH ....................................................................................................................... 14 4.1. Limit ............................................................................................................................................... 14 4.2. Test Setup ....................................................................................................................................... 14 4.3. Spectrum Analyzer Setting ............................................................................................................. 14 4.4. Test Procedure ................................................................................................................................ 14 4.5. Test Result ...................................................................................................................................... 14 5. CARRIER FREQUENCY SEPARATION .............................................................................................. 15 5.1. Limit ............................................................................................................................................... 15 5.2. Test Setup ....................................................................................................................................... 15 5.3. Spectrum Analyzer Setting ............................................................................................................. 15 5.4. Test Procedure ................................................................................................................................ 15 5.5. Test Result ...................................................................................................................................... 15 6. NUMBER OF HOPPING CHANNEL .................................................................................................. 16 6.1. Limit ............................................................................…

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FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 62 of 83 Appendix G: Band edge measurements Test Result Test Mode Antenna Ch Name Freq(MHz) Ref Level [dBm] Result [dBm] Limit [dBm] Verdict DH5 Ant1 Low 2402 3.45 -35.73 ≤-16.55 PASS High 2480 3.66 -41.37 ≤-16.34 PASS Low Hop_2402 1.99 -50.54 ≤-18.01 PASS High Hop_2480 3.22 -47.17 ≤-16.78 PASS 2DH5 Ant1 Low 2402 3.33 -37.1 ≤-16.67 PASS High 2480 3.79 -44.32 ≤-16.21 PASS Low Hop_2402 -1.41 -50.75 ≤-21.41 PASS High Hop_2480 3.50 -49.09 ≤-16.5 PASS 3DH5 Ant1 Low 2402 3.36 -37.17 ≤-16.64 PASS High 2480 3.89 -42.97 ≤-16.11 PASS Low Hop_2402 -0.89 -51.79 ≤-20.89 PASS High Hop_2480 3.20 -49.04 ≤-16.81 PASS FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 63 of 83 Test Graphs DH5_Ant1_Low_2402 DH5_Ant1_High_2480 DH5_Ant1_Low_Hop_2402 FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 64 of 83 DH5_Ant1_High_Hop_2480 2DH5_Ant1_Low_2402 2DH5_Ant1_High_2480 FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 65 of 83 2DH5_Ant1_Low_Hop_2402 2DH5_Ant1_High_Hop_2480 3DH5_Ant1_Low_2402 FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 66 of 83 3DH5_Ant1_High_2480 3DH5_Ant1_Low_Hop_2402 3DH5_Ant1_High_Hop_2480 FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 67 of 83 Appendix H: Conducted Spurious Emission Test Result Test Mode Antenna Freq(MHz) Freq Range [MHz] Ref Level [dBm] Result [dBm] Limit [dBm] Verdict DH5 Ant1 2402 30~26500 3.45 -41.49 ≤-16.55 PASS 2441 30~26500 3.44 -39.74 ≤-16.56 PASS 2480 30~26500 3.66 -40.44 ≤-16.34 PASS 2DH5 Ant1 2402 30~26500 3.33 -41.97 ≤-16.67 PASS 2441 30~26500 3.45 -41.6 ≤-16.55 PASS 2480 30~26500 3.79 -42.06 ≤-16.21 PASS 3DH5 Ant1 2402 30~26500 3.36 -42.31 ≤-16.64 PASS 2441 30~26500 3.51 -40.75 ≤-16.49 PASS 2480 30~26500 3.89 -36.78 ≤-16.11 PASS FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 68 of 83 Test Graphs DH5_Ant1_2402_30~26500 DH5_Ant1_2441_30~26500 DH5_Ant1_2480_30~26500 FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 69 of 83 2DH5_Ant1_2402_30~26500 2DH5_Ant1_2441_30~26500 2DH5_Ant1_2480_30~26500 FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 70 of 83 3DH5_Ant1_2402_30~26500 3DH5_Ant1_2441_30~26500 3DH5_Ant1_2480_30~26500 FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 71 of 83 14. TEST SETUP PHOTO Conducted Test FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 72 of 83 Radiated Test (Below 1GHz) Radiated Test (Above 1GHz) FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 73 of 83 15. EUT PHOTO External Photos M/N: S643 FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 74 of 83 External Photos M/N: S643 FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 75 of 83 External Photos M/N: S643 FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 76 of 83 External Photos M/N: S643 FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 77 of 83 Internal Photos M/N: S643 FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 78 of 83 Internal Photos M/N: S643 FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 79 of 83 Internal Photos M/N: S643 FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 80 of 83 Internal Photos M/N: S643 FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 81 of 83 Internal Photos M/N: S643 FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 82 of 83 Internal Photos M/N: S643 FCC ID: 2ARUDS310W EST Technology Co., Ltd Report No. ESTE-R2303026 Page 83 of 83 Internal Photos M/N: S643 End of Test Report

远德电子（深圳）有限公司 样 品 承 认 书 SAMPLEAPPROVALSHEET 部品信息： 客户（ Customer）中山市悦辰电子实业有限公司 部品名称（ MaterialDescription ） S645WBT 天线 客户料号（ Customer’s Partnumber ） 部品规格（Specifications） S645WBT 天线：FPC（L42*W25mm）+黑色同轴线 （φ1.13*180mm）+焊接+焊盘UV 远德 料号（Supplier’s Partnumber）136-S645W-10A 送样日期（ Date）2022-12-06 远德签核： 拟 制 PreparedBy 审 核 CheckedBy 批 准 ApprovedBy 张登桥唐志鹏张红英 客户签核： 承 认 AcceptedBy 审 核 CheckedBy 批 准 ApprovedBy 承认结果： □完全接受（FullApproval） □条件接受（ConditionalApproval） □不合格（Unqualified） □其它（Others）: 本样品承认书我司确保属实，如经贵司研发部门确认签核后，请以最快速度回传给我司。如有其它原因，请以 书面形式通知我。 Thissampleapprovalsheetis guaranteedtobetrue.If it is confirmedbyyourR&Ddepartment,pleasesendit backtousassoonaspossible.If thereareotherreasons,pleaseinformusin writing. Page 2 目录 1、规格............................................................................. ...3 1.1电气规格标准........................................................................... ...3 1.1.1电性能指标..... ..................................................................... ...3 1.1.2匹配电路图...... ....................................................................... ..3 2、测试..........................................................................................3 2.1无源S11参数的测试....................................................................3 2.1.1测试连接.............................................................................................3 2.1.2无源S11 ..............................................................................................3 2 .2增益及效率的测试...... .. .......................................................... .....4 2.2.1测试的场地..... ...................................................................... ...4 2.2.2测试的仪表 ...... ........................................................................4 2.2.3测试结果...... ...................................................................... .... ..4 2.2.4无源辐射方向图............................................................ ..... ......5-6 3、结论...............................................................................7 4、产品结构图纸.............................................................................8 Page 3 1 规格 本报告主要提供天线 S645WBT 天线各项电气和结构性能参数的测试状况。 图 1 天 线 1.1 电气规格标准 1 .1.1 电性能指标 天线工作频段在 2400-2 480MHz 。下表是我司设计天线的电性能的指标 . 1 .1.2 匹配电路图 匹配电路未做更改。 2 测试 天线用 客户提供的样机进行调试及测试。 2.1 无源 S11 的测试 2.1.1测试连接 无源S11测试装置依次的连接为：网络分析仪→测试线→测试治具。 2.1.2 无源 S11 下表所示为天线工作频段边缘频点的驻波比数值。测试所得的Return Loss, VSWR相关波形 图如下图所示。 天线BT天线 频段 2400-2480MHz 驻波比 < 2 效率 > 50% 阻抗 50ohm 极化方式线极化 ElementValue E1(0402)N/A E2(0402) 原匹配 E3(0402)N/A Page 4 S645WBT 天线S11 频率 (MHz)240024402480 VSWR1.231.161.17 ReturnLoss-19.46-22.34-22.06 2.2增益及效率的测试 2.2.1 测试的场地 远德微波暗室：测试频率范围为400MH z— 6GHz 2.2.2测试的仪表 网络分析仪、标准喇叭天线、多探头近场天线测试系统、测试电脑等。 2.2.3测试结果 在微波暗室中，测试的与效率及增益相关的数值如下表所示 Page 5 Frequency(MHz)Gain(dBi)Efficency(%) 24002.1358.97 24101.8355.28 24202.2760.16 24302.0957.64 24401.9457.62 24502.0860.44 24601.5656.07 24701.7059.52 24802.2956.56 24902.2557.93 25002.2160.35 2.2.4无源辐射方向图 Page 6 Page 7 3 、结论 此天线是在客户提供样机基础上设计，上述电性能参数基于测试样机环 境处理条件下测试，电参数和结构性能已达到技术要求，请确认！ 4、产品结构图 Page 8

Conducted Test Radiated Test (Below 1GHz) Radiated Test (Above 1GHz)