2AJVH-LOOP3Plus Loop Smart Ring

1/1 US Agent for Service of ProcessLETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company Name: 3Plus International Inc. FRN: 0025909045 Contact Name: Yau Hwa Chan Address: 1502 Foothill Blvd Suite 103-260, La Verne, California, 91750, United States Telephone No: 909-447-8369 Email: [email protected] 3Plus International Inc. certifies that, as of the date of this filing of the application with the TCB, 3Plus International Inc. is our designated US agent for service of process for the above referenced FCC ID. 3Plus International Inc. 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 equipment. 3Plus International Inc. accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process fo Applicant: Company name: 3Plus International Inc. Product Description: 3Plus Loop Smart Ring Grantee code: 2AJVH FRN: 0025909045 FCC ID: 2AJVH-LOOP Contact Name: Yau Hwa Chan Address: 1502 Foothill Blvd Suite 103-260, La Verne, California, 91750, United States Telephone No: 909-447-8369 Email: [email protected] r the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicantis aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Date: 2024/07/25 Applicant’s Name: 3Plus International Inc. US Agent’s Name: 3Plus International Inc. Title: Account Executive Title: Account Executive Signature Signature

C5266091_X24_Ed.2 1/1 3Plus International Inc. TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: 3Plus International Inc. Grantee code: 2AJVH FRN: 0025909045 FCC ID: 2AJVH-LOOP Contact Name: Yau Hwa Chan Address: 1502 Foothill Blvd Suite 103-260, La Verne, California, 91750, United States Telephone No: 909-447-8369 Fax No: 909-447-8366 Email: [email protected] i. 3Plus International Inc. (“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. The applicant must sign this certification. ii. 3Plus International Inc. (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not (as a specifically named entity or any of its subsidiaries or affiliates)identified on the Covered List as an entity producing “covered” equipment. The applicant must sign this certification. 3Plus International Inc. (“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 . Date: 2024/07/25 Applicant’s Name: Yau Hwa Chan Title: Account Executive Signature 1 The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist

3Plus International Inc. Product Similarity Declaration Product name:3Plus Loop Smart Ring Model name: 3Plus Loop, 3Plus Ring Loop, Ring Loop, Loop FCC ID: 2AJVH-LOOP We (3Plus International Inc.) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.,), same mechanical structure and design (including product enclosure, materials, etc.,), the only difference is the model name. Signature: Name: Yau Hwa Chan Title: Account Executive Cjima, 2024-07-25

C5266091_X8_Ed.1 1/1 Letter of Authorization 3Plus International Inc. Company: 3Plus International Inc. Address: 1502 Foothill Blvd Suite 103-260, La Verne, California, 91750, United States Product Name: 3Plus Loop Smart Ring Model Number: 3Plus Loop, 3Plus Ring Loop, Ring Loop, Loop FCC Identifier: 2AJVH-LOOP We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Yau HwaChan Date:2024-07-25 Title: Account Executive Signature of applicant:

C5266091_X10_Ed.2 1/1 3Plus International Inc. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date:2024-07-25 Subject: Request for Confidentiality FCC ID: 2AJVH-LOOP To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☐ ☐ Schematics ☐ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☐ Internal Photos ☐ NOTE 1 ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☐ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Yau Hwa Chan Title: Account Executive

Page 1 of 4 Appendix C: Photographs of EUT Product: 3Plus Loop Smart Ring Model: 3Plus Loop External Photos Page 2 of 4 Page 3 of 4 Page 4 of 4

LabelArtworkandLocation Model:3PlusLoop LabelandSize: Location

Page 1 of 2 Appendix C: Photographs of EUT Product: 3Plus Loop Smart Ring Model: 3Plus Loop Internal Photos Page 2 of 2 Antenna

Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID. ............................ : 2AJVH-LOOP Test Report No. ............... : TCT240710E011 Date of issue ................... : Jul. 23, 2024 Testing laboratory .......... : SHENZHEN TONGCE TESTING LAB Testing location/ address: 2101 & 2201, Zhenchang Factory Renshan Industrial Zone, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, 518103, People's Republic of China Applicant's name ............ : 3Plus International Inc. Address ........................... : 1502 Foothill Blvd Suite 103-260, La Verne, California, 91750, United States Manufacturer's name ... : 3Plus International Inc. Address ........................... : 1502 Foothill Blvd Suite 103-260, La Verne, California, 91750, United States Standard(s) ..................... : KDB 447498 D01 General RF Exposure Guidance v06 Product Name ................. : 3Plus Loop Smart Ring Trade Mark ...................... : Model/Type reference..... : 3Plus Loop, 3Plus Ring Loop, Ring Loop, Loop Rating(s).......................... : Rechargeable Li-ion Battery DC 3.7V Date of receipt of test item ......................................... : Jul. 10, 2024 Date (s) of performance of test ................................... : Jul. 10, 2024 ~ Jul. 23, 2024 Tested by (+signature) ... : Onnado YE Check by (+signature) .... : Beryl ZHAO Approved by (+signature): Tomsin General disclaimer: This report shall not be reproduced except in full, without the written approval of SHENZHEN TONGCE TESTING LAB. This document may be altered or revised by SHENZHEN TONGCE TESTING LAB personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample. Report No.: TCT240710E011 Page 2 of 6 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Table of Contents 1. General Product Information .................................................................. 3 1.1. EUT description ..................................................................................................... 3 1.2. Model(s) list ............................................................................................................ 3 2. General Information ................................................................................. 4 2.1. Test environment and mode ................................................................................. 4 2.2. Description of Support Units ................................................................................ 4 3. Facilities and Accreditations .................................................................. 5 3.1. Facilities ................................................................................................................. 5 3.2. Location ................................................................................................................. 5 4. Test Results and Measurement Data ..................................................... 6 Report No.: TCT240710E011 Page 3 of 6 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1. General Product Information 1.1. EUT description Product Name ....................... : 3Plus Loop Smart Ring Model/Type reference........... : 3Plus Loop Sample Number....................: TCT240710E010-0101 Operation Frequency ........... : 2402MHz~2480MHz Modulation Type ................... : GFSK Antenna Type ........................ : Monopole Antenna Antenna Gain ........................ : 0.17dBi Rating(s)................................ : Rechargeable Li-ion Battery DC 3.7V Note: The antenna gain listed in this report is provided by applicant, and the test laboratory is not responsible for this parameter. 1.2. Model(s) list None. Report No.: TCT240710E011 Page 4 of 6 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 2. General Information 2.1. Test environment and mode Item Normal condition Temperature +25ºC Voltage DC 3.7V Humidity 56% Atmospheric Pressure: 1008 mbar Test Mode: Engineering mode: Keep the EUT in continuous transmitting by select channel 2.2. Description of Support Units The EUT has been tested as an independent unit together with other necessary accessories or support units. The following support units or accessories were used to form a representative test configuration during the tests. Equipment Model No. Serial No. FCC ID Trade Name / / / / / Note: 1. All the equipment/cables were placed in the worst-case configuration to maximize the emission during the test. 2. Grounding was established in accordance with the manufacturer’s requirements and conditions for the intended use. 3. For conducted measurements (Output Power, 20dB Occupied Bandwidth, Carrier Frequencies Separation, Hopping Channel Number, Dwell Time, Spurious Emissions), the antenna of EUT is connected to the test equipment via temporary antenna connector, the antenna connector is soldered on the antenna port of EUT, and the temporary antenna connector is listed in the Test Instruments. Report No.: TCT240710E011 Page 5 of 6 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 3. Facilities and Accreditations 3.1. Facilities The test facility is recognized, certified, or accredited by the following organizations: ● FCC - Registration No.: 645098 SHENZHEN TONGCE TESTING LAB Designation Number: CN1205 The testing lab has been registered and fully described in a report with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in our files. ● IC - Registration No.: 10668A-1 SHENZHEN TONGCE TESTING LAB CAB identifier: CN0031 The testing lab has been registered by Certification and Engineering Bureau of Industry Canada for radio equipment testing. 3.2. Location SHENZHEN TONGCE TESTING LAB Address: 2101 & 2201, Zhenchang Factory, Renshan Industrial Zone,…

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Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID. ............................ : 2AJVH-LOOP Test Report No. ............... : TCT240710E010 Date of issue ................... : Jul. 23, 2024 Testing laboratory .......... : SHENZHEN TONGCE TESTING LAB Testing location/ address: 2101 & 2201, Zhenchang Factory Renshan Industrial Zone, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, 518103, People's Republic of China Applicant's name ............ : 3Plus International Inc. Address ........................... : 1502 Foothill Blvd Suite 103-260, La Verne, California, 91750, United States Manufacturer's name ... : 3Plus International Inc. Address ........................... : 1502 Foothill Blvd Suite 103-260, La Verne, California, 91750, United States Standard(s) ..................... : FCC CFR Title 47 Part 15 Subpart C Section 15.247 FCC KDB 558074 D01 15.247 Meas Guidance v05r02 ANSI C63.10:2013 Product Name ................. : 3Plus Loop Smart Ring Trade Mark ...................... : Model/Type reference..... : 3Plus Loop, 3Plus Ring Loop, Ring Loop, Loop Rating(s).......................... : Rechargeable Li-ion Battery DC 3.7V Date of receipt of test item ......................................... : Jul. 10, 2024 Date (s) of performance of test ................................... : Jul. 10, 2024 ~ Jul. 23, 2024 Tested by (+signature) ... : Onnado YE Check by (+signature) .... : Beryl ZHAO Approved by (+signature): Tomsin General disclaimer: This report shall not be reproduced except in full, without the written approval of SHENZHEN TONGCE TESTING LAB. This document may be altered or revised by SHENZHEN TONGCE TESTING LAB personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample. Report No.: TCT240710E010 Page 2 of 63 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Table of Contents 1. General Product Information .................................................................. 3 1.1. EUT description ..................................................................................................... 3 1.2. Model(s) list ............................................................................................................ 3 1.3. Operation Frequency ............................................................................................ 3 2. Test Result Summary .............................................................................. 4 3. General Information ................................................................................. 5 3.1. Test environment and mode ................................................................................. 5 3.2. Description of Support Units ................................................................................ 5 4. Facilities and Accreditations .................................................................. 6 4.1. Facilities ................................................................................................................. 6 4.2. Location ................................................................................................................. 6 4.3. Measurement Uncertainty ..................................................................................... 6 5. Test Results and Measurement Data ..................................................... 7 5.1. Antenna requirement ............................................................................................ 7 5.2. Conducted Emission ............................................................................................. 8 5.3. Conducted Output Power ................................................................................... 12 5.4. Emission Bandwidth ........................................................................................... 13 5.5. Power Spectral Density ....................................................................................... 14 5.6. Conducted Band Edge and Spurious Emission Measurement ....................... 15 5.7. Radiated Spurious Emission Measurement ...................................................... 17 Appendix A: Test Result of Conducted Test Appendix B: Photographs of Test Setup Appendix C: Photographs of EUT Report No.: TCT240710E010 Page 3 of 63 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1. General Product Information 1.1. EUT description Product Name ....................... : 3Plus Loop Smart Ring Model/Type reference........... : 3Plus Loop Sample Number....................: TCT240710E010-0101 Bluetooth Version ................ : V5.1 Operation Frequency ........... : 2402MHz~2480MHz Channel Separation .............. : 2MHz Data Rate ............................... : LE 1M PHY, LE 2M PHY Number of Channel .............. : 40 Modulation Type ................... : GFSK Antenna Type ........................ : Monopole Antenna Antenna Gain ........................ : 0.17dBi Rating(s)................................ : Rechargeable Li-ion Battery DC 3.7V Note: The antenna gain listed in this report is provided by applicant, and the test laboratory is not responsible for this parameter. 1.2. Model(s) list No. Model No. Tested with 1 3Plus Loop Other models 3Plus Ring Loop, Ring Loop, Loop Note: 3Plus Loop is tested model, other models are derivative models. The models are identical in circuit and PCB layout, only different on the model names. So the test data of 3Plus Loop can represent the remaining models. 1.3. Operation Frequency Channel Frequency Channel Frequency Channel Frequency Channel Frequency 0 2402MHz 10 2422MHz 20 2442MHz 30 2462MHz 1 2404MHz 11 2424MHz 21 2444MHz 31 2464MHz ... ... ... ... ... ... ... ... 8 2418MHz 18 2438MHz 28 2458MHz 38 2478MHz 9 2420MHz 19 2440MHz 29 2460MHz 39 2480MHz Remark: Channel 0, 19 & 39 have been tested. Report No.:…

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ShenzhenfirstlinecableCo.,LTD Add:21Building,Wanfeng98IndustrialCity,ShajingStreet,Baoan District,Shenzhen AntennaSpecificationforApproval CustomerName：ShenzhenMoYoungtechnologyco.,LTD ProductName：2.4Gantennalength57.85mm Antennatype:monopole PartNO.:C10-35-2.5 WriteBy：ZhuangJiebin IssuedDate:2023-10-08 client: R&DDept BusinessDept ApprovedBy ISDN R&DDept EngineerDept Approval ZhuangCaihong ZhuangJiebinZhuangJiebin ProductSpecification A.ElectricalCharacteristics Frequency2400MHz ~2500MHzVSWR<3.0 Efficiency>30% Impedance50 OhmPolarization LineGain 0DBi B.Material&MechanicalCharacteristics MaterialofRadiatorCu CableType1.019PRed ConnectorType:NO Dimension C.Environmental OperationTemperature-30°C~+80 °CStorageTemperature-30°C~+ 85°C TestEquipment&Conditions 1. NetworkAnalyzers : Agilent8753D5071C 2.CommunicationsTestSet: AgilentE5525C 3.3DChamberTestSystem Line Gain 0 dBi Effiency& Gain RadiationPattern -2.17 dBi 0. 12 dBi 2.40GHz 2.44GHz 2.48GHz 0. 17 dBi : 2.40 GHz 2D Plot2.44 GHz 2D Plot 2.48 GHz 2D Plot 2.40 GHz 3D Plot 2.44 GHz 3D Plot 2.48 GHz 3D Plot

Page 1 of 2 Appendix B: Photographs of Test Setup Product: 3Plus Loop Smart Ring Model: 3Plus Loop Radiated Emission Page 2 of 2 Conducted Emission