2AX6R-ET580SMART WATCH

1/1 US Agent for Service of Process LETTER 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: THREE STONES MEDIA LLC FRN: 0033401761 Contact Name: Sijie Zhang Address: 1200 Broadway St. APT 329, Los Angeles, CA90015 Telephone No: +1 267 909 3692 Email: [email protected] Applicant: Company name: Shenzhen Xiangmingda Technology Co., Ltd Grantee Code: 2AX6R FCC ID: 2AX6R-ET580 FRN: 0030186738 Contact Name: jack xiao Address: 8th Floor Block A, Building C4,Third Industrial Zone, Huangmabu Community, Hangcheng Street, Baoan District, Shenzhen Telephone No: 86-13510654035 Fax No: / Email: [email protected] Shenzhen Xiangmingda Technology Co., Ltd certifies that, as of the date of this filing of the application with the TCB, [THREE STONES MEDIA LLC] is our designated US agent for service of process for the above referenced FCC ID. Shenzhen Xiangmingda Technology Co., Ltd 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. [THREE STONES MEDIA LLC] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for 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 Applicant 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. Date: 2023.12.22 Applicant’s Name: jack xiao US Agent’s Name: THREE STONES MEDIA LLC Title: Manager Title: CEO Signature: Signature:

C5266091_X24_Ed.2 1/1 “Attestation Statements” 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: Shenzhen Xiangmingda Technology Co., Ltd Grantee Code: 2AX6R FCC ID: 2AX6R-ET580 FRN: 0030186738 Contact Name: jack xiao Address: 8th Floor Block A, Building C4,Third Industrial Zone, Huangmabu Community, Hangcheng Street, Baoan District, Shenzhen Telephone No: 86-13510654035 Fax No: / Email: [email protected] Product Name: SMART WATCH Model Number: E800, ET390, S11, S12, S20, T68, T69, T91, T92, T80, T82, T56, T20, T22, T23, T25, T26, T28, ET280, ET281, ET380, ET381, ET481, ET482, ET480, ET490, ET491, ET620, ET630, ET570, ET580, ET581, E530, E600, F220, F320, F230, F330, E420, E430, T50, M8 E410, ET310, ET340, ET440, ET540, ET450, ET550, E610, T21, ET282, G10, G11, G15, G16, G18, G19, G20, G21, G25, G26, G28, G29, S15, S16, S18, S19, S25, S26, S28, S29, T86, T89, T98, T99, S12, S22, S23, S25, T58, T59, T98, T99 i. [Shenzhen Xiangmingda Technology 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. The applicant must sign this certification. ii. [Shenzhen Xiangmingda Technology Co., Ltd ] (“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. [Shenzhen Xiangmingda Technology Co., Ltd ] (“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 . Name: jack xiao Date: 2023/12/22 Title: Manager Signature of applicant: 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

Shenzhen Xiangmingda Technology Co., Ltd Product Similarity Declaration Product name: SMART WATCH Model name: E800, ET390, S11, S12, S20, T68, T69, T91, T92, T80, T82, T56, T20, T22, T23, T25, T26, T28, ET280, ET281, ET380, ET381, ET481, ET482, ET480, ET490, ET491, ET620, ET630, ET570, ET580, ET581, E530, E600, F220, F320, F230, F330, E420, E430, T50, M8 E410, ET310, ET340, ET440, ET540, ET450, ET550, E610, T21, ET282, G10, G11, G15, G16, G18, G19, G20, G21, G25, G26, G28, G29, S15, S16, S18, S19, S25, S26, S28, S29, T86, T89, T98, T99, S12, S22, S23, S25, T58, T59, T98, T99 FCC ID: 2AX6R-ET580 We (Shenzhen Xiangmingda Technology Co., Ltd ) 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.,), except for differences model name. Name: jack xiao Date: 2023/12/22 Title: Manager Signature of applicant:

C5266091_X8_Ed.1 1/1 Letter of Authorization Shenzhen Xiangmingda Technology Co., Ltd Company name: Shenzhen Xiangmingda Technology Co., Ltd Grantee Code: 2AX6R FCC ID: 2AX6R-ET580 FRN: 0030186738 Contact Name: jack xiao Address: 8th Floor Block A, Building C4,Third Industrial Zone, Huangmabu Community, Hangcheng Street, Baoan District, Shenzhen Telephone No: 86-13510654035 Fax No: / Email: [email protected] Product Name: SMART WATCH Model Number: E800, ET390, S11, S12, S20, T68, T69, T91, T92, T80, T82, T56, T20, T22, T23, T25, T26, T28, ET280, ET281, ET380, ET381, ET481, ET482, ET480, ET490, ET491, ET620, ET630, ET570, ET580, ET581, E530, E600, F220, F320, F230, F330, E420, E430, T50, M8 E410, ET310, ET340, ET440, ET540, ET450, ET550, E610, T21, ET282, G10, G11, G15, G16, G18, G19, G20, G21, G25, G26, G28, G29, S15, S16, S18, S19, S25, S26, S28, S29, T86, T89, T98, T99, S12, S22, S23, S25, T58, T59, T98, T99 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: jack xiao Date: 2023/12/22 Title: Manager Signature of applicant:

C5266091_X10_Ed.2 1/1 Shenzhen Xiangmingda Technology Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2023/12/22 Subject: Request for Confidentiality FCC ID: 2AX6R-ET580 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. In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of ______ days from the date of the Grant of Equipment Authorization and prior to marketing. 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. C5266091_X10_Ed.2 1/1 Sincerely, Name: jack xiao Date: 2023/12/22 Title: Manager Signature of applicant:

Page 1 of 5 Report No.: psi2312053-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2F, Building 5, Yudafu Industrial Park, No. 10, Xingye West Road, Shajing Street, Bao'an District, Shenzhen, Guangdong, China 518104 Appendix II external photos Page 2 of 5 Report No.: psi2312053-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2F, Building 5, Yudafu Industrial Park, No. 10, Xingye West Road, Shajing Street, Bao'an District, Shenzhen, Guangdong, China 518104 Page 3 of 5 Report No.: psi2312053-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2F, Building 5, Yudafu Industrial Park, No. 10, Xingye West Road, Shajing Street, Bao'an District, Shenzhen, Guangdong, China 518104 Page 4 of 5 Report No.: psi2312053-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2F, Building 5, Yudafu Industrial Park, No. 10, Xingye West Road, Shajing Street, Bao'an District, Shenzhen, Guangdong, China 518104 Page 5 of 5 Report No.: psi2312053-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2F, Building 5, Yudafu Industrial Park, No. 10, Xingye West Road, Shajing Street, Bao'an District, Shenzhen, Guangdong, China 518104 ------End------

Label: FCC ID: 2AX6R-ET580 Label location

Page 1 of 6 Report No.: psi2312053-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2F, Building 5, Yudafu Industrial Park, No. 10, Xingye West Road, Shajing Street, Bao'an District, Shenzhen, Guangdong, China 518104 Appendix III internal photos Page 2 of 6 Report No.: psi2312053-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2F, Building 5, Yudafu Industrial Park, No. 10, Xingye West Road, Shajing Street, Bao'an District, Shenzhen, Guangdong, China 518104 Page 3 of 6 Report No.: psi2312053-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2F, Building 5, Yudafu Industrial Park, No. 10, Xingye West Road, Shajing Street, Bao'an District, Shenzhen, Guangdong, China 518104 Page 4 of 6 Report No.: psi2312053-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2F, Building 5, Yudafu Industrial Park, No. 10, Xingye West Road, Shajing Street, Bao'an District, Shenzhen, Guangdong, China 518104 Page 5 of 6 Report No.: psi2312053-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2F, Building 5, Yudafu Industrial Park, No. 10, Xingye West Road, Shajing Street, Bao'an District, Shenzhen, Guangdong, China 518104 Antenna 1 BT Antenna Location Page 6 of 6 Report No.: psi2312053-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2F, Building 5, Yudafu Industrial Park, No. 10, Xingye West Road, Shajing Street, Bao'an District, Shenzhen, Guangdong, China 518104 ------End------

FCC ID: 2AX6R-ET580 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2F, Building 5, Yudafu Industrial Park, No. 10, Xingye West Road, Shajing Street, Bao'an District, Shenzhen, Guangdong, China 518104 RF Exposure evaluation TEST STANDARDS Follow the maximum permissible exposure (MPE) limits specified in 447498 D04 Interim General Radio Frequency Exposure Guidelines v01. The gain of the antenna used in the product was extracted from the supplied antenna data sheet and the maximum total power input to the antenna was also measured. Calculate the distance from the product to the MPE limit by the formula. According to 447498 D04 Interim General RF Exposure Guidance v01 1-mW Test Exemption A single RF source is exempt RF device (from the requirement to show data demonstrating compliance to RF exposure limits, as previously mentioned) if the available maximum time-averaged power is no more than 1 mW, regardless of separation distance. This exemption applies to all operating configurations and exposure conditions, for the frequency range 100 kHz to 100 GHz, regardless of fixed, mobile, or portable device exposure conditions. This is a standalone exemption, and it cannot be applied in conjunction with any other test exemption. 1-mW Test Exemption for Multiple Sources The 1-mW exemption intended for single transmitters may be also applied to simultaneous transmission conditions, within the same host device, according one of the following criteria: a) When maximum available power each individual transmitting antenna within the same time averaging period is ≤ 1 mW, and the nearest parts of the antenna structures of the simultaneously operating transmitters are separated by at least 2 cm. b) When the aggregate maximum available power of all transmitting antennas is ≤ 1 mW in the same time-averaging period. This exemption may not be combined with any other exemption. SAR-Based Exemption This exemption is applicable to the frequency range between 300 MHz and 6 GHz, with test separation distances between 0.5 cm and 40 cm, and for all RF sources in fixed, mobile, and portable device exposure conditions. Accordingly, a RF source is considered an RF exempt device if its available maximum time-averaged (matched conducted) power or its effective radiated power (ERP), whichever is greater, are below a specified threshold. This exemption threshold was derived based on general population 1-g SAR requirements. This method shall only be used at separation distances from 0.5 cm to 40 cm and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by follow FCC ID: 2AX6R-ET580 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2F, Building 5, Yudafu Industrial Park, No. 10, Xingye West Road, Shajing Street, Bao'an District, Shenzhen, Guangdong, China 518104 Formulas “f” is in GHz, “d” is the separation distance (cm) (SAR-Based Exemption) Test Result of RF Exposure Evaluation As this equipment: Max. Antenna Gain: -0dBi. Max. Conducted Power: -3.36dBm BT: Mode Output power (dBm) Max Output power (mW) Separation distance (cm) Limit (mW) Result BT-LE -3.36 0.461 0.5 2.72 PASS Conclusion: No SAR is required. Note: 1. This device is mobile device. 2. The source of the evaluation data results is based on the test report psi2312053-C01-R01. 3. The Maxinum power is less than the limit, complies with the exemption requirements. -----The End-----

Shenzhen Yiyitong Cable Co., Ltd Address: Building 21, Wanfeng 98 Industrial City, Shajing Street, Bao'an District, Shenzhen 天线规格承认书 Antenna Specification for Approval 客户名称 CustomerName： Shenzhen Xiangmingda Technology Co, Ltd 产品名称： ProductName：2.4G Antenna 全长25mm红色 客户型号： ProductName: 产品料号： Part NO.:C10- 35-2.5 制 表 ： WriteBy ：庄杰彬 日 期： IssuedDate:2021-10-08 客 户: 工程R&D Dept采购Business Dept承认Approved By 一线通 研发 R&D Dept 工程Engineer Dept 审核 Approval 庄彩虹庄杰彬庄杰彬 Product Specification A.ElectricalCharacteristics Frequency 2400MHz~2500MHz VSWR<3.0 Efficiency >30% Impedance 50 Ohm Polarization Max Gain : 0.00dBi B.Material & MechanicalCharacteristics Material of Radiator Cu Cable Type 1.0 19P Red Connector Type : NO Dimension C.Environmental Operation Temperature - 30 °C ~ + 80 °C Storage Temperature - 30 °C~+ 85 °C Test Equipment & Conditions 1.Network Analyzers: Agilent 8753D 5071C 2.Communications TestSet: Agilent E5525C 3.3D Chamber TestSystem Radiation Pattern: 2450MHz

Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2F, Building 5, Yudafu Industrial Park, No. 10, Xingye West Road, Shajing Street, Bao'an District, Shenzhen, Guangdong, China 518104 FCC TEST REPORT FCC ID: 2AX6R-ET580 On Behalf of Shenzhen Xiangmingda Technology Co., Ltd SMART WATCH Model No.: E800, ET390, S11, S12, S20, T68, T69, T91, T92, T80, T82, T56, T20, T22, T23, T25, T26, T28, ET280, ET281, ET380, ET381, ET481, ET482, ET480, ET490, ET491, ET620, ET630, ET570, ET580, ET581, E530, E600, F220, F320, F230, F330, E420, E430, T50, M8 E410, ET310, ET340, ET440, ET540, ET450, ET550, E610, T21, ET282, G10, G11, G15, G16, G18, G19, G20, G21, G25, G26, G28, G29, S15, S16, S18, S19, S25, S26, S28, S29, T86, T89, T98, T99, S12, S22, S23, S25, T58, T59, T98, T99 Prepared for : Shenzhen Xiangmingda Technology Co., Ltd Address : 8th Floor Block A, Building C4,Third Industrial Zone, Huangmabu Community, Hangcheng Street, Baoan District, Shenzhen Prepared By : Shenzhen PSI Testing Co., Ltd. Address : 1-2F, Building 5, Yudafu Industrial Park, No. 10, Xingye West Road, Shajing Street, Bao’an District, Shenzhen, Guangdong, China 518104 Report Number : psi2312053-C01-R01 Date of Receipt : December 14, 2023 Date of Test : December 15, 2023- December 22, 2023 Date of Report : December 22, 2023 Version Number : V0 Page 2 of 42 Report No.: psi2312053-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2F, Building 5, Yudafu Industrial Park, No. 10, Xingye West Road, Shajing Street, Bao'an District, Shenzhen, Guangdong, China 518104 TABLE OF CONTENTS Description Page 1. Summary Of Standards And Results ------------------------------------------------------------------------------- 6 1.1. Description of Standards and Results ----------------------------------------------------------------------- 6 2. General Information ----------------------------------------------------------------------------------------------------- 7 2.1. Description of Device (EUT) ----------------------------------------------------------------------------------- 7 2.2. Accessories of Device (EUT) ---------------------------------------------------------------------------------- 8 2.3. Tested Supporting System Details---------------------------------------------------------------------------- 8 2.4. Block Diagram of Connection Between EUT and Simulators ------------------------------------------ 8 2.5. Test Mode Description ------------------------------------------------------------------------------------------- 9 2.6. Test Conditions -------------------------------------------------------------------------------------------------- 10 2.7. Test Facility ------------------------------------------------------------------------------------------------------- 10 2.8. Measurement Uncertainty ------------------------------------------------------------------------------------ 10 2.9. Test Equipment List -------------------------------------------------------------------------------------------- 11 3. Spurious Emission ----------------------------------------------------------------------------------------------------- 12 3.1. Test Limits -------------------------------------------------------------------------------------------------------- 12 3.2. Block Diagram of Test setup --------------------------------------------------------------------------------- 13 3.3. Test Procedure -------------------------------------------------------------------------------------------------- 14 3.4. Test Results ------------------------------------------------------------------------------------------------------ 15 4. Power Line Conducted Emission --------------------------------------------------------------------------------- 21 4.1. Test Limits -------------------------------------------------------------------------------------------------------- 21 4.2. Test Procedure -------------------------------------------------------------------------------------------------- 21 4.3. Test Setup -------------------------------------------------------------------------------------------------------- 21 4.4. Test Results ------------------------------------------------------------------------------------------------------ 22 5. Out-of-band Emissions ----------------------------------------------------------------------------------------------- 25 5.1. Test Limits -------------------------------------------------------------------------------------------------------- 25 5.2. Test Procedure -------------------------------------------------------------------------------------------------- 25 5.3. Test Setup -------------------------------------------------------------------------------------------------------- 25 5.4. Test Results ------------------------------------------------------------------------------------------------------ 25 6. Conducted Maximum Output Power ----------------------------------------------------------------------------- 31 6.1. Test limits --------------------------------------------------------------------------------------------------------- 31 6.2. Test Procedure -------------------------------------------------------------------------------------------------- 31 6.3. Test Setup -------------------------------------------------------------------------------------------------------- 31 6.4. Test Results ------------------------------------------------------------------------------------------------------ 31 7. Peak Power Spectral Density --------------------------------------------------------------------------------------- 32 7.1. Test limits --------------------------------------------------------------------------------------------------------- 32 7.2. Test Procedure -------------------------------------------------------------------------------------------------- 32 7.3. Test Setup -------------------------…

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Page 1 of 2 Report No.: psi2312053-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2F, Building 5, Yudafu Industrial Park, No. 10, Xingye West Road, Shajing Street, Bao'an District, Shenzhen, Guangdong, China 518104 Appendix I Test Setup Photo Spurious Radiation Emissions Test (<1G) Spurious Radiation Emissions Test (>1G) Page 2 of 2 Report No.: psi2312053-C01-R01 Shenzhen PSI Testing Co., Ltd. Tel: 0755-23011775 | E-mail: [email protected] | http://www.psi-lab.com Add: 1-2F, Building 5, Yudafu Industrial Park, No. 10, Xingye West Road, Shajing Street, Bao'an District, Shenzhen, Guangdong, China 518104 Conducted emission Test ------End------