2BKZY-TR686Remote control

•Product Features: 2.4G Remote Control •Product color: as shown in the sample Material: Silicone, ABS •Product process: Liquid soft smooth silicone gel; Remote control surface •Hand oil TR686 remote control TREYI Product Specification be made fromengineering certificationQuality confirmationBusiness confirmationapproval performance parameter Product weight--g（）product size--mm Product noise＜ 65 dBBattery type602020 discharge time＞ 2 Hbattery capacity180mAH charging interval2HCharging methodMagnetic attraction (center distance 6.0 mm) Motor model////motor speed///// charging voltageDC 5VPCB board model charging current250mAPantone Color NumberSample working voltage3.7Vsoft rubber hardnesslinear measure turn-off current＜ 10uARelevant certificationsMSDS、UN38.3 classification of waterproof////surface temperature numberTR686 editionV1.0 date2025.6.11 ←Press to turn on vibration / Long press to turn off vibration; Press to switch frequencies; The button light stays on when the device is activated, and flashes once with each press. ←Long press to turn on/off the power; Press to activate/deactivate the function; After power-on, both functions are set to the maximum frequency by default, and the button light stays on when the device is activated. ←Press to turn on telescoping / Long press to turn off telescoping; Press to switch frequencies; The button light stays on when activated, and flashes once with each press. Button light: White If no action is taken after 10 minutes, the device will shut down automatically. FCC Statement Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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 protection against harmful interference in a residential installation. This equipment 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 equipment 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 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. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.

DongGuan TeRui Health Care Equipment Co., LTD A Unit, 2 Floor, 1 Building, Hua Wei Ke Gu Science and Technology Garden, Da Ling Shan Town, Dong Guan City, Guang Dong Province, China. 2026/3/10 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION EUT NAME: Remote control Trademark: N/A MODEL: TR686, TR988 FCC ID: 2BKZY-TR686 To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen STS Test Services Co., Ltd. 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). This agreement expires one year from the current date. Sincerely, Client’s signature: Client’s name / title: Terry Huang / General manager Contact information / address: A Unit, 2 Floor, 1 Building, Hua Wei Ke Gu Science and Technology Garden, Da Ling Shan Town, Dong Guan City, Guang Dong Province, China.

(DongGuan TeRui Health Care Equipment Co., LTD) (2026/3/10) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for (FCC ID: 2BKZY-TR686) [DongGuan TeRui Health Care Equipment Co., LTD] (“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. We also certify that, as of the 2025/6/23 of the filing of the application, the equipment does not utilize cyber-security or anti-virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, (Applicant signature) (Applicant printed name) Terry Huang (DongGuan TeRui Health Care Equipment Co., LTD) (2026/3/10) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for (FCC ID: 2BKZY-TR686) [DongGuan TeRui Health Care Equipment Co., LTD] (“the applicant”) certifies that, as of the 2025/6/23 of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, (Applicant signature) (Applicant printed name) Terry Huang

DongGuan TeRui Health Care Equipment Co., LTD A Unit, 2 Floor, 1 Building, Hua Wei Ke Gu Science and Technology Garden, Da Ling Shan Town, Dong Guan City, Guang Dong Province, China. U.S. Agent Designation for Service of Process (Applicant and U.S. Agent are Separate Parties) TO: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA ATTENTION: FCC Certification – Section 2.911(d)(7) Information Designated U.S. Agent Company Name: ANTEK SERVICE INC Address: 901 N PENNSYLVANIA ST STE 0 DENVER, CO 80203 Contact: 0033437609 Email: [email protected] Tel.: 01 303-8006306 Signed by: Shirley Kwok This letter is to confirm that we (“the Designated U.S. Agent) have accepted the responsibility to act as the Designated U.S. Agent for Service of Process as required by section 47 CFR 2.911(d)(7) on behalf of the Applicant noted below. U.S. Agent Signature: Date: 3/23/2026 Signed by (Printed Name/Title): The Applicant acknowledges that they must maintain an agent for no less than one year after terminating all marketing and importation OR the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility to inform the FCC whenever the Designated U.S. Agent information above changes. Applicant Company Name: DongGuan TeRui Health Care Equipment Co., LTD Address: A Unit, 2 Floor, 1 Building, Hua Wei Ke Gu Science and Technology Garden, Da Ling Shan Town, Dong Guan City, Guang Dong Province, China. FRN: 0035934603 FCC ID: 2BKZY-TR686 Email: [email protected] Tel.: 13538214502 Contact Name: Terry Huang Applicant Signature: Date: 3/23/2026 Signed by (Printed Name/Title): Terry Huang / General manager

DongGuan TeRui Health Care Equipment Co., LTD A Unit, 2 Floor, 1 Building, Hua Wei Ke Gu Science and Technology Garden, Da Ling Shan Town, Dong Guan City, Guang Dong Province, China. 2026/3/10 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: Remote control Trademark: N/A MODEL: TR686, TR988 FCC ID: 2BKZY-TR686 To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the - Block Diagram - Schematics - Operational Description required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, Client’s signature: Client’s name / title: Terry Huang / General manager Contact information / address: A Unit, 2 Floor, 1 Building, Hua Wei Ke Gu Science and Technology Garden, Da Ling Shan Town, Dong Guan City, Guang Dong Province, China.

DongGuan TeRui Health Care Equipment Co., LTD A Unit, 2 Floor, 1 Building, Hua Wei Ke Gu Science and Technology Garden, Da Ling Shan Town, Dong Guan City, Guang Dong Province, China. 2026/3/23 EUT NAME: Remote control Trademark: N/A MODEL: TR686, TR988 FCC ID: 2BKZY-TR686 All models have the same circuit and RF module, only the model names are different. Client’s signature: Client’s name / title: Terry Huang / General manager Contact information / address: A Unit, 2 Floor, 1 Building, Hua Wei Ke Gu Science and Technology Garden, Da Ling Shan Town, Dong Guan City, Guang Dong Province, China.

FCC ID: 2BKZY-TR686 External Photos FCC ID: 2BKZY-TR686 FCC ID: 2BKZY-TR686 FCC ID: 2BKZY-TR686

Size:16*1mm FCC ID: 2BKZY-TR686 Label location

FCC ID: 2BKZY-TR686 Internal Photos FCC ID: 2BKZY-TR686 Antenna FCC ID: 2BKZY-TR686

The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the ShenZhen STS Test Services Co., Ltd. MPE Report Report No.: STS2602318H01 Issued for DongGuan TeRui Health Care Equipment Co., LTD A Unit, 2 Floor, 1 Building, Hua Wei Ke Gu Science and Technology Garden, Da Ling Shan Town, Dong Guan City, Guang Dong Province, China. Product Name: Remote control Brand Name: N/A Model Name: TR686 Series Model(s): TR988 FCC ID: 2BKZY-TR686 Test Standards: FCC 47CFR §2.1093 Page 2 of 8 Report No.: STS2602318H01 TEST REPORT Applicant’s Name ................. : DongGuan TeRui Health Care Equipment Co., LTD Address ................................. : A Unit, 2 Floor, 1 Building, Hua Wei Ke Gu Science and Technology Garden, Da Ling Shan Town, Dong Guan City, Guang Dong Province, China. Manufacturer's Name ........... : DongGuan TeRui Health Care Equipment Co., LTD Address ................................. : A Unit, 2 Floor, 1 Building, Hua Wei Ke Gu Science and Technology Garden, Da Ling Shan Town, Dong Guan City, Guang Dong Province, China. Product Description Product Name ........................ : Remote control Brand Name .......................... : N/A Model Name .......................... : TR686 Series Model(s) ...................... : TR988 Test Standards ..................... : FCC 47CFR §2.1093 447498 D01 Interim General RF Exposure Guidance v06 The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the ShenZhen STS Test Services Co., Ltd. Date of Test ........................................... : Date of receipt of test item ...................... : 28 Jan. 2026 Date (s) of performance of tests ............. : 28 Jan. 2026 to 06 Feb. 2026 Date of Issue .......................................... : 06 Feb. 2026 Test Result .............................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 8 Report No.: STS2602318H01 TABLE OF CONTENTS 1. GENERAL INFORMATION 5 1.1 GENERAL DESCRIPTION OF THE EUT 5 1.2 TEST FACTORY 5 2. FCC 47CFR §2.1093 REQUIREMENT 6 2.1 TEST STANDARDS 6 2.2 LIMIT 6 2.3 TEST RESULT 8 Page 4 of 8 Report No.: STS2602318H01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 06 Feb. 2026 STS2602318H01 ALL Initial Issue Page 5 of 8 Report No.: STS2602318H01 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name Remote control Brand Name N/A Model Name TR686 Series Model(s) TR988 Model Difference All the model are the same circuit and RF module, Only the model names are different, the test model is TR686. Product Description The EUT is Remote control Operation Frequency: 2402~2480 MHz Modulation Type: GFSK 1Mbps, GFSK 2Mbps Antenna gain: 1.68dBi Antenna Designation: PCB antenna Power Rating Charging: DC 5V Adapter N/A Battery DC 3.7V Hardware Version N/A Software Version N/A 1.2 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 Page 6 of 8 Report No.: STS2602318H01 2. FCC 47CFR §2.1093 REQUIREMENT 2.1 TEST STANDARDS The limit for Maximum Permissible Exposure (MPE) specified in KDB 447498 D01 General RF Exposure Guidance v06 is followed. The gain of the antennas used in the product is extracted from the Antenna data sheets provided and also the maximum total power input to the antenna is measured. Through the Friis transmission formula and the maximum gain of the antenna, we can calculate the distance, away from the product, where the limit of MPE is reached. Although the Friis Transmission formula is far field assumption, the calculated result of that is an over-prediction for near field power density. It is taken as worst case to specify the safety range. 2.2 LIMIT Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. Page 7 of 8 Report No.: STS2602318H01 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 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. Page 8 of 8 Report No.: STS2602318H01 2.3 TEST RESULT Maximum measured transmitter power. Worst Case Mode Frequency Maximum Output Power Tune up tolerance Max Tune up GHz dBm dBm dBm GFSK(BLE) 2.402 1.01 0.5±1 1.5 Evaluation Result Mode Frequency Antenna Distance RF output power including tune up SAR Test Exclusion Threshold SAR Test Exclusion Estimated SAR GHz mm dBm mw GFSK(BLE) 2.402 5 1.5 1.413 0.438 Yes / Note: 1. Remark: The worst case gain of the antenna is 1.68dBi. 2. Threshold at which no SAR required is yyy≤ 3.0 for 1-g SAR, Separation distance ≤ 5mm. ※※※※※END OF THE REPORT※※※※※

Dong Guan SYL Technology CO.,LTD Antenna Specification Manufacture：SYL Product Name：TR-988-BT-RX Antenna Antenna Type：PCB Test Date：2025/12/3 Tested by： Checked By: Approved By: ChengMingWei DuLin QianCongGen Dong Guan SYL Technology CO.,LTD 1.General Description Manufacturer： Dong Guan SYL Technology CO.,LTD Address： Room 203,DongHui Industrial Park,No.198 DaTang Road, DongGuan, GuangDong,China Product Name： TR-988-BT-RX Antenna Product model： TR-988-BT-RX Antenna Type： PCB Antenna Test Frequency： 2400-2500MHz Antenna Gain： 1.68dBi VSWR： ＜1.4 Impedance： 50Ω Polarization： Linear Dong Guan SYL Technology CO.,LTD 2.Antenna size: Dong Guan SYL Technology CO.,LTD 3.Gain and Efficiency Frequency 2.44GHz XY-Plane XZ-Plane YZ-Plane Efficiency （%） Average -0.5-3.6-3.0 60.2% Peak 1.35 1.68 1.11 Dong Guan SYL Technology CO.,LTD 4.ReturnLoss 5.XY-Plane Dong Guan SYL Technology CO.,LTD 6.XZ-Plane 7.YZ-Plane Dong Guan SYL Technology CO.,LTD 8.3D Radiation Pattern Diagram 10.Test Setup Photo

The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Radio Test Report Report No.: STS2602318W01 Issued for DongGuan TeRui Health Care Equipment Co., LTD A Unit, 2 Floor, 1 Building, Hua Wei Ke Gu Science and Technology Garden, Da Ling Shan Town, Dong Guan City, Guang Dong Province, China. Product Name: Remote control Brand Name: N/A Model Name: TR686 Series Model(s): TR988 FCC ID: 2BKZY-TR686 Test Standards: FCC Part15.247 Page 2 of 68 Report No.: STS2602318W01 TEST REPORT Applicant’s Name ................. : DongGuan TeRui Health Care Equipment Co., LTD Address ................................. : A Unit, 2 Floor, 1 Building, Hua Wei Ke Gu Science and Technology Garden, Da Ling Shan Town, Dong Guan City, Guang Dong Province, China. Manufacturer's Name .......... : DongGuan TeRui Health Care Equipment Co., LTD Address ................................. : A Unit, 2 Floor, 1 Building, Hua Wei Ke Gu Science and Technology Garden, Da Ling Shan Town, Dong Guan City, Guang Dong Province, China. Product Description Product Name ....................... : Remote control Brand Name .......................... : N/A Model Name .......................... : ... : TR686 Series Model(s) .................... : TR988 Test Standards ..................... : FCC Part15.247 Test Procedure ...................... : ANSI C63.10-2020 This device described above has been tested by STS, the test results show that the equipment under test (EUT) is in compliance with the IC requirements. And it is applicable only to the tested sample identified in the report. The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Date of Test ........................................... : Date of receipt of test item ..................... : 28 Jan. 2026 Date (s) of performance of tests ............. : 28 Jan. 2026 to 06 Feb. 2026 Date of Issue .......................................... : 06 Feb. 2026 Test Result.............................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) Page 3 of 68 Report No.: STS2602318W01 Table of Contents Page 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.1 GENERAL DESCRIPTION OF THE EUT 8 2.2 DESCRIPTION OF THE TEST MODES 9 2.3 TEST SOFTWARE AND POWER LEVEL 10 2.4 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 10 2.5 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 11 2.6 EQUIPMENTS LIST 12 3. EMC EMISSION TEST 13 3.1 CONDUCTED EMISSION MEASUREMENT 13 3.2 TEST PROCEDURE 14 3.3 TEST SETUP 14 3.4 EUT OPERATING CONDITIONS 14 3.5 TEST RESULTS 15 4. RADIATED EMISSION MEASUREMENT 17 4.1 RADIATED EMISSION LIMITS 17 4.2 TEST PROCEDURE 19 4.3 TEST SETUP 20 4.4 EUT OPERATING CONDITIONS 20 4.5 FIELD STRENGTH CALCULATION 21 4.6 TEST RESULTS 22 5. CONDUCTED SPURIOUS & BAND EDGE EMISSION 33 5.1 LIMIT 33 5.2 TEST PROCEDURE 33 5.3 TEST SETUP 33 5.4 EUT OPERATION CONDITIONS 33 5.5 TEST RESULTS 33 6. POWER SPECTRAL DENSITY TEST 34 6.1 LIMIT 34 6.2 TEST PROCEDURE 34 Page 4 of 68 Report No.: STS2602318W01 Table of Contents Page 6.3 TEST SETUP 34 6.4 EUT OPERATION CONDITIONS 34 6.5 TEST RESULTS 34 7. BANDWIDTH TEST 35 7.1 LIMIT 35 7.2 TEST PROCEDURE 35 7.3 TEST SETUP 35 7.4 EUT OPERATION CONDITIONS 35 7.5 TEST RESULTS 35 8. PEAK OUTPUT POWER TEST 36 8.1 LIMIT 36 8.2 TEST PROCEDURE 36 8.3 TEST SETUP 36 8.4 EUT OPERATION CONDITIONS 36 8.5 TEST RESULTS 36 9. ANTENNA REQUIREMENT 37 9.1 STANDARD REQUIREMENT 37 9.2 EUT ANTENNA 37 APPENDIX 1-TEST DATA 38 DUTY CYCLE 38 MAXIMUM CONDUCTED OUTPUT POWER 42 -6DB BANDWIDTH 43 OCCUPIED CHANNEL BANDWIDTH 47 MAXIMUM POWER SPECTRAL DENSITY LEVEL 51 BAND EDGE 55 CONDUCTED RF SPURIOUS EMISSION 60 APPENDIX 2- EUT TEST PHOTO 68 Page 5 of 68 Report No.: STS2602318W01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 06 Feb. 2026 STS2602318W01 ALL Initial Issue Page 6 of 68 Report No.: STS2602318W01 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.247 Meas Guidance v05r02. FCC Part 15.247,Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS -- 15.247 (a)(2) 6dB Bandwidth PASS -- 15.247 (b)(3) Output Power PASS -- 15.209 Radiated Spurious Emission PASS -- 15.247 (d) Conducted Spurious & Band Edge Emission PASS -- 15.247 (e) Power Spectral Density PASS -- 15.205 Restricted bands of operation PASS -- Part 15.247(d)/ Part 15.209(a) Band Edge Emission PASS -- 15.203 Antenna Requirement PASS -- Note: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2020. Page 7 of 68 Report No.: STS2602318W01 1.1 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 RF output power, conducted ±0.751dB 2 Unwanted Emissions, conducted ±2.888dB 3 All emissions, radiated 9K-30MHz ±2.48dB 4 All emissions, radiated 30M-1GHz ±2.52dB 5 All emissions, radiated 1G-18GHz ±3.48dB 6 All emissions, radiated>18GHz ±4.18dB 7 Conducted Emission (9KHz-150KHz) ±2.48dB 8 Conducted Emission (150KHz-30MHz) ±2.52dB 9 Occupied Channel Bandwidth ±3.6% 10 Power Spectral Density, conducted ±1.214dB 11 Duty Cycle ±3.2% Page 8 of 68 Report No.: STS2…

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Page 1 of 2 FCC ID: 2BKZY-TR686 Conducted emissions Radiated emissions Page 2 of 2 FCC ID: 2BKZY-TR686 Spurious emissions