2BXYG-RK168Smart Watch

FCC Statement Thisdevicecomplieswithpart15oftheFCCrules.Operationis subjecttothe followingtwoconditions:(1)thisdevicemaynotcauseharmfulinterference, and(2)thisdevicemustacceptanyinterferencereceived,including interferencethatmaycauseundesiredoperation. Changesormodificationsnotexpresslyapprovedbythepartyresponsiblefor compliancecouldvoidtheuser'sauthoritytooperatetheequipment. NOTE:Thisequipmenthasbeentestedandfoundtocomplywiththelimitsfor a ClassB digitaldevice,pursuanttopart15oftheFCCRules.Theselimitsare designedtoprovidereasonableprotectionagainstharmfulinterferenceina residentialinstallation.Thisequipmentgeneratesusesandcanradiateradio frequencyenergyand,ifnotinstalledandusedinaccordancewiththe instructions,maycauseharmfulinterferencetoradiocommunications. However,thereis noguaranteethatinterferencewillnotoccurina particular installation.Ifthisequipmentdoescauseharmfulinterferencetoradioor televisionreception,whichcanbedeterminedbyturningtheequipmentoff andon,theuserisencouragedtotrytocorrecttheinterferencebyoneor moreofthefollowingmeasures: • 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction 1.English..........................................................................1 2.Français........................................................................15 3.Deutsch....................................................................19 4.italiano.......................................................................23 5.Spanish...................................................................27 6.Japanese...................................................................31 7.Português................................................................35 8.Polski.........................................................................39 9.Čeština......................................................................43 10.Nederlands................................................................45 11.Svenska...................................................................47 12.Ελληνικά(Elliniká)...................................................49 13.Magyar......................................................................51 14.Dansk.......................................................................53 15. 한국어 (Hangugeo)..............................................55 16.ةيبرعلا(Al-‘Arabīyah)...............................................57 17.Română...................................................................59 18.Български(Bǎlgarski)...........................................61 19.BahasaIndonesia.................................................63 20.Slovenčina..............................................................65 21.Hrvatski...................................................................67 22.Srpskijezik(latinica)...............................................69 23.Lietuvių..................................................................71 24.Eesti........................................................................73 25.Latviešu...................................................................75 26.Suomi..................................................................77 27.Slovenščina..........................................................79 28.Íslenska................................................................81 29.Norsk.....................................................................83 1 ChargingandActivation a.Connectthewatchchargingcabletoa5V-1Aadapterandplugit in.Ensureproperalignmentofthecablewiththemetalcontactpins onthebackcoverofthewatch.Thebuilt-inmagnetswill automaticallyattachtothecorrectpolesforcharging. b.lfthewatchisnewlyreceivedorhasnotbeenusedforalong time,thebatterymaybeina0voltageprotectionstate.Chargethe watchforatleast15minutestoaccumulateenoughpower toactivateit.Thebuilt-inmagnetswillautomaticallyattachtothe correctpolesforcharging. c.ltisrecommendedtochargethedeviceonceamonth.Keepthe devicefullychargedandpowe!itoffwhennotinusetoensure longevityandoptimalperformance. 2 AppDownload ①Downloadthe"FitCloudPro"appfromtheAppStoreor GooglePlay. ②ScanQRcodetodownload. PairasFollows-l0S a.UponfirstuseoftheFitCloudProapp,enableittoaccess Bluetooth,wirelessdata,andnotificationsonyourcompatible smartphonebygrantingallnecessarypermissionsthroughyour phone'ssettings. 3 b.Usetheappwith"VisitAsGuest"or"Signln" 4 ConnectingBluetooth-l0S a.Select'SearchNow'todiscoverandconnecttothewatch Bluetoothdevice.andtarthewatchto'agree'grantaccessand completthepairingprocess. b."AllowBluetoothPairing"and"AllowNotifications” 5 SettingUpFitCloudProAppon Android:PermissionsandAgreement a."Agree"FitCloudProPrivacyPolicy&UserAareement,Loginor UseWithoutAccount: b.FillinyourpersonalinformationandSearch/connectnearby permissionsBluetoothrequest 6 C.AllowFitCloudProtodiscoverandconnecttathewatch devices.Tapthewatchandselectagreetograntaccessand completethepairingprocess. d.AllowBluetoothpairingrequestsandAccesstoContacts: 7 TurningonPushNotifications a.Notethatthewatchcannotreceivenotificationswhenthephone isinDoNotDisturbmode. b.Ensurethemobilephone'sBluetoothis active,theFitCloudProappisrunning,andthe watchisconnectedtothephone'sBluetooth. c.Makesurethatnotificationsarevisibleon thenotificationbarofyourphone, 8 Turningonweatherlocator TurnontheweatherreportsfeatureintheFitCloudProapptogetweather forecasts. SettingtheDisplayUnitoftheWatch 9 Setting/DownloadWatchFaces a.Pressandholdthewatchfacefor2secondsthenquicklyswipeto switchbetweenwatchfaces b.DownloadwatchfacesthroughFitCloudPro'swatchfaceUl market.NotethatonlyonewatchfaceUlcanbesavedata timeAnewdownloadwillreplacethepreviouslysa…

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TCB CALL página 1 File FCC ID: 2BXYG-RK168 Please upload an exhibit that explains how does the TCB verify the new agent information: 1- Is the address of the agent a valid physical US mailing address (not a US post office box, not a virtual mailbox, not P.O. Boxes, not a vacant lot, not a public building, etc.) ○ We have checked if the address exists in a real and potential building (Google maps) + official US register, after this verification and the evidence below we can guarantee the following: not a US post office box not a virtual mailbox not P.O. Boxes not a vacant lot not a public building(note) ► We checked the FCC FRN Search based on the information provided by the grantee. On the official register from : Search | California Secretary of State TCB CALL página 2 TCB CALL página 3 TCB CALL página 4 TCB CALL página 5 TCB CALL página 6 TCB CALL página 7 TCB CALL página 8 ► CONCLUSION by TCB: The ASOP defined and provided by grantee is VALID and confirmed. Therefore the exhibit "C5266091_X23_Ed1_US_Agent_Letter" included in the file is ok. 2- Is the agent physically located at that valid US address such that the agent can be legally served at that address? Yes , check above 3- Has the listed agent clearly agreed in writing to serve as the agent for the grantee at that address? Yes, it is included in the exhibit "C5266091_X23_Ed1_US_Agent_Letter" >

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: Herland International Trading Inc FRN: 0036324101 Contact Name: Jianfeng Gao Address: 1370 Valley Vista Dr Ste 200 Diamond Bar California 91765-3921 Telephone No: 001-909-772-1888 Email: [email protected] Applicant: Company name: Shenzhen Rongkang Technology Co., Ltd. Product Description: Smart Watch Grantee code: 2BXYG FCC ID: 2BXYG-RK168 FRN: 0038830659 Contact Name: Jack bu Address: Room905,Huayu Science and Technology Building, Niulanqian Industrial Zone. Minzhi Street. Xinniu Community, Minzhi Street. Longhua District, Shenzhen, Guangdong, China Telephone No: 18906679427 Email: [email protected] [Shenzhen Rongkang Technology Co., Ltd.] certifies that, as of the date of this filing of the application with the TCB, [Herland International Trading Inc] is our designated US agent for service of process for the above referenced FCC ID. [Shenzhen Rongkang 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. [Herland International Trading Inc] 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: 2026/08/28 Applicant’s Name: Jack bu US Agent’s Name: Jianfeng Gao Title: Manager Title: Manager Signature Signature

Attestation Statement. Old Code: C5266091 24 New Code: 00015544 Ed.3 Change reason: FRN is added to the Applicant information section. 1/1 Shenzhen Rongkang Technology Co., Ltd. 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 Rongkang Technology Co., Ltd. Grantee code: 2BXYG FCC ID: 2BXYG-RK168 FRN: 0038830659 Contact Name: Jack bu Address: Room905,Huayu Science and Technology Building, Niulanqian Industrial Zone. Minzhi Street. Xinniu Community, Minzhi Street. Longhua District, Shenzhen, Guangdong, China Telephone No: 18906679427 Fax No: 18906679427 Email: [email protected] i. [Shenzhen Rongkang 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 Rongkang 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 Rongkang 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 . Date: 2026/08/28 Applicant’s Name: Jack bu Title: Manager Signature: 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 Rongkang Technology Co., Ltd. Code 00018768 Ed. 1 Item 1. The device is able to install software/program installation? ☐ Yes, go to Item 2. ☒ No. In this case, the rest of the items do not apply. The device cannot support installation of Kaspersky cybersecurity or anti-virus software. Item 2. Technical Requirements for Kaspersky Cybersecurity Software: # General Requirements (For all Devices) Yes / No or N/A Comments 1 Internet connection for activation and updates (For all Operating Systems) N/A Device Smart Watch Company name Shenzhen Rongkang Technology Co., Ltd. Grantee code 2BXYG FCC ID 2BXYG-RK168 FRN 0038830659 Contact name Jack bu Address Room905,Huayu Science and Technology Building, Niulanqian Industrial Zone. Minzhi Street. Xinniu Community, Minzhi Street. Longhua District, Shenzhen, Guangdong, China Telephone number 18906679427 E-mail [email protected] Chipset/module information AB5681F Operating System (if applicable) N/A Storage Capacity (hard drive or other permanent memory storage, if applicable) N/A 2 # General Requirements (For Windows Devices) Yes / No or N/A Comments 1 Storage: 1500 MB free space on the hard drive N/A 2 Operating System: Microsoft Windows 8, 8.1, 10 & 11 Home / Pro / Enterprise Microsoft Windows 7 Starter / Home Basic & Premium / Professional / Ultimate SP1 or higher N/A 3 Processor: 1 GHz or higher (x86 or x64) N/A 4 Memory (RAM)1 GB (32-bit) or 2 GB (64-bit) N/A 5 Screen Resolution: Minimum resolution of 1024 x 768 N/A # General Requirements (For macOS devices) Yes / No or N/A Comments 1 Operating System macOS® 13 – 14 N/A 2 Memory (RAM)4 GB N/A 3 Storage: 3455 MB free space on the hard drive N/A # General Requirements (For Android Devices) Yes / No or N/A Comments 1 Storage: 150 MB free space N/A 2 Operating System: Android™ 10 – 14 N/A 3 Screen Resolution: Minimum resolution of 320 x 480 N/A # General Requirements (for iOS devices) Yes / No or N/A Comments 1 Storage: 150 MB free space N/A 2 Operating System: iOS® 17 N/A # General Requirements (For Linux system) Yes / No or N/A Comments 3 1 Hard drive: 1 GB of free space N/A 2 CPU: Intel Pentium 1 GHz or higher N/A 3 RAM: 1 GB N/A 4 Minimum software requirements: AlmaLinux OS 8 or later; AlterOS 7.5 or later; Astra Linux Common Edition 2.12 or later; CentOS 6.7 or later; Debian GNU/Linux 10.0 or later; EulerOS 2.0 or later; Oracle Linux 7.3 or later ; Red Hat Enterprise Linux 6.7 or later ; Rocky Linux 8.5 or later ; SUSE Linux Enterprise Server 12.5 or later; Ubuntu 12.04 or later ; Uncom OS Home / Business / Education / Enterprise 2.2 or later; ALT Linux Workstaton / Workstation K / Server / Education 8 or later; ROSA Linux Workstation / Server 12 or later ; RED OS 7.3 and later ; N/A After reviewed the technical requirements, is the device capable of supporting the installation of Kaspersky software? ☐ Yes, go to Item 3. ☒ No. In this case, the rest of the items do not apply. The device cannot support installation of Kaspersky software Item 3. Connectivity Capabilities: 4 # Physical Interface Purpose Justification 1 1 # Wireless Interface Purpose Justification 1 1 After the review of this items, the device: ☒ Cannot support installation of any cybersecurity or anti-virus software on the covered list. ☐ Potentially can operate with any cybersecurity or anti-virus software on the covered list – additional third- party proof is provided to demonstrate compliance with requirements as of 2.911(d)5(i),(ii) – “Proof of Compliance with Covered List Software Requirements” of this document applies Signature: Name: Jack bu Date:2026-08-28 1 The justification field is used to justify why the software cannot be received through that interface. Check the annex for more indications.

Shenzhen Rongkang Technology Co., Ltd. Product Similarity Declaration FCC ID: 2BXYG-RK168 Applicant: Shenzhen Rongkang Technology Co., Ltd. Address: Room905,Huayu Science and Technology Building, Niulanqian Industrial Zone. Minzhi Street. Xinniu Community, Minzhi Street. Longhua District, Shenzhen, Guangdong, China Manufacturer: Shenzhen Rongkang Technology Co., Ltd. Address: Room905,Huayu Science and Technology Building, Niulanqian Industrial Zone. Minzhi Street. Xinniu Community, Minzhi Street. Longhua District, Shenzhen, Guangdong, China Product Name: Smart Watch Trade Mark: N/A Model Number: RK168, RK100, RK128, RK158, RK200, RK268, RK300, RK400, RK520, RK600, RK700, RK800, AK17G, BH11, AK15, AK73, AK75, AK82, AK83, AK86, AK87, AK88, AK91, AK92, AK93, AK95, AK102, AK103, AK105, AK106, AK107, AK108, AK109, AK112 We (Shenzhen Rongkang 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.,), All models are same as the samples except model name and color, they have the same structure and circuit. Client’s signature Name: Jake bu Date: 2026-08-21 Title: Manager Signature of applicant:

C5266091_X10_Ed.2 1/1 Shenzhen Rongkang Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2026.08.28 Subject: Request for Confidentiality FCC ID: 2BXYG-RK168 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. Sincerely, C5266091_X10_Ed.2 1/1 Signature: Name: Jack bu Title: Manager 2026.08. 28

C5266091_X8_Ed.1 1/1 Letter of Authorization Guangdong Shinechef Electric Appliance Co., Ltd. Company: Guangdong Shinechef Electric Appliance Co., Ltd. Address: 180, Bai'an South Road, Junan Town, Shunde District, Foshan, Guangdong, China Product Name: Smart Watch Model Number: RK168, RK100, RK128, RK158, RK200, RK268, RK300, RK400, RK520, RK600, RK700, RK800, AK17G, BH11, AK15, AK73, AK75, AK82, AK83, AK86, AK87, AK88, AK91, AK92, AK93, AK95, AK102, AK103, AK105, AK106, AK107, AK108, AK109, AK112 FCC Identifier: 2BXYG-RK168 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 bu Date: 2026.08.28 Title: Manager Signature of applicant:

Shenzhen DL Testing Technology Co., Ltd. EUT PHOTO(External Photos) Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. ※※※※※ END OF REPORT ※※※※※

Size: 15*4mm FCC ID: 2BXYG-RK168 Label location

Shenzhen DL Testing Technology Co., Ltd. EUT PHOTO(Internal Photos) ANT Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. ※※※※※ END OF REPORT ※※※※※

FCC ID: 2BXYG-RK168 RF Exposure Evaluation According to KDB 447498 D01 V06 and part 2.1093，Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition(s), listed below, is (are) satisfied. For 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(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 EIRP=E Meas +20log(d Meas )-104.7 EIRP is the equivalent isotropically radiated power, in dBm E Meas is the field strength of the emission at the measurement distance, in dBμV/m d Meas is the measurement distance, in m Here, Conducted output power (dBm) Max tune-up (mW) Frequency (MHz) Min. distance(mm) Calc. thresholds limit 1.13 1.30 2402 5 0.40 3.0 So a SAR test is not required

Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260812009R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 1 of 28 FCC Part 15C Test Report FCC ID: 2BXYG-RK168 Applicant: Shenzhen Rongkang Technology Co., Ltd. Address: Room905,Huayu Science and Technology Building, Niulanqian Industrial Zone. Minzhi Street. Xinniu Community, Minzhi Street. Longhua District, Shenzhen, Guangdong, China Manufacturer: Shenzhen Rongkang Technology Co., Ltd. Address: Room905,Huayu Science and Technology Building, Niulanqian Industrial Zone. Minzhi Street. Xinniu Community, Minzhi Street. Longhua District, Shenzhen, Guangdong, China Product Name: Smart Watch Trade Mark: N/A Model Number: RK168, RK100, RK128, RK158, RK200, RK268, RK300, RK400, RK520, RK600, RK700, RK800, AK17G, BH11, AK15, AK73, AK75, AK82, AK83, AK86, AK87, AK88, AK91, AK92, AK93, AK95, AK102, AK103, AK105, AK106, AK107, AK108, AK109, AK112 Date of Receipt: Aug. 12, 2026 Test Date: Aug. 12, 2026 – Aug. 21, 2026 Date of Report: Aug. 21, 2026 Prepared By: Shenzhen DL Testing Technology Co., Ltd. Address: 101-201, Comprehensive Building, Tongzhou Electronics Longgang Factory Area, No.1 Baolong Fifth Road, Baolong Community, Baolong Street, Longgang District, Shenzhen, China Applicable Standards: FCC PART 15 C 15.247 ANSI C63.10-2020 + Cor. 1-2023+C63.10a-2024 + Errata to C63.10a-2024 Test Result: Pass Report Number: DLE-260812009R Prepared (Test Engineer): Ken Tan Reviewer (Supervisor): Jack Bu Approved (Manager): Jade Yang This test report is based on a single evaluation of one sample of above mentioned products. It is not permitted to be duplicated in extracts without written approval of Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260812009R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 2 of 28 Table of Contents Page 1 . SUMMARY OF TEST RESULTS 4 1.1 MEASUREMENT UNCERTAINTY 4 2 . GENERAL INFORMATION 5 2.1 GENERAL DESCRIPTION OF EUT 5 2.2 DESCRIPTION OF TEST MODES 6 2.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 6 2.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 7 2.5 TABLE OF PARAMETERS OF TEST SOFTWARE SETTING 7 2.6 EQUIPMENTS LIST FOR ALL TEST ITEMS 8 3 . EMC EMISSION TEST 9 3.1 CONDUCTED EMISSION MEASUREMENT 9 3.1.1 POWER LINE CONDUCTED EMISSION LIMITS 9 3.1.2 TEST PROCEDURE 9 3.1.3 DEVIATION FROM TEST STANDARD 9 3.1.4 TEST SETUP 10 3.1.5 EUT OPERATING CONDITIONS 10 3.1.6 TEST RESULTS 10 3.2 RADIATED EMISSION MEASUREMENT 13 3.2.1 RADIATED EMISSION LIMITS 13 3.2.2 TEST PROCEDURE 14 3.2.3 DEVIATION FROM TEST STANDARD 14 3.2.4 TEST SETUP 14 3.2.5 EUT OPERATING CONDITIONS 15 3.2.6 TEST RESULTS (BETWEEN 9KHZ – 30 MHZ) 16 3.2.7 TEST RESULTS (BETWEEN 30MHZ – 1GHZ) 17 3.2.8 TEST RESULTS (1GHZ~25GHZ) 19 3.3 RADIATED BAND EMISSION MEASUREMENT 20 3.3.1 TEST REQUIREMENT: 20 3.3.2 TEST PROCEDURE 20 3.3.3 DEVIATION FROM TEST STANDARD 20 3.3.4 TEST SETUP 21 3.3.5 EUT OPERATING CONDITIONS 21 4 . PEAK OUTPUT POWER 25 4.1 APPLIED PROCEDURES / LIMIT 25 4.1.1 TEST PROCEDURE 25 4.1.2 DEVIATION FROM STANDARD 25 4.1.3 TEST SETUP 25 4.1.4 EUT OPERATION CONDITIONS 25 Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260812009R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 3 of 28 Table of Contents Page 4.1.5 TEST RESULTS 25 5 . POWER SPECTRAL DENSITY TEST 26 5.1 APPLIED PROCEDURES / LIMIT 26 5.1.1 TEST PROCEDURE 26 5.1.2 DEVIATION FROM STANDARD 26 5.1.3 TEST SETUP 26 5.1.4 EUT OPERATION CONDITIONS 26 5.1.5 TEST RESULTS 26 6 . 6DB BANDWIDTH TEST 27 6.1 APPLIED PROCEDURES / LIMIT 27 6.1.1 TEST PROCEDURE 27 6.1.2 DEVIATION FROM STANDARD 27 6.1.3 TEST SETUP 27 6.1.4 EUT OPERATION CONDITIONS 27 6.1.5 TEST RESULTS 27 7 . ANTENNA REQUIREMENT 28 7.1 STANDARD REQUIREMENT 28 7.2 EUT ANTENNA 28 8 . TEST SETUP PHOTO 28 9 . EUT PHOTO 28 Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260812009R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 4 of 28 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.247) , Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS 15.247(c) Radiated Spurious Emission PASS 15.205 Band Edge Emission PASS 15.247(b)(1) Peak Output Power PASS 15.247(a)(2) 6dB Bandwidth PASS 15.247(d) Power Spectral Density PASS 15.203 Antenna Requirement PASS NOTE: (1)” N/A” denotes test is not applicable in this Test Report Test lab: Shenzhen DL Testing Technology Co., Ltd. Address: 101-201, Comprehensive Building, Tongzhou Electronics Longgang Factory Area, No.1 Baolong Fifth Road, Baolong Community, Baolong Street, Longgang District, Shenzhen, China FCC Test Firm Registration Number: 854456 Designation Number: CN1307 IC Registered No.: 27485 CAB ID.: CN0118 1.1 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 Conducted Emission Test ±2.56dB 2 RF power,conducted ±0.42dB 3 Spurious emissions,conducted ±2.76dB 4 All emissions,radiated(<1G) ±3.65dB 5 All emissions,radiated(>1G) ±4.89dB 6 Temperature ±0.5°C 7 Humidity ±2% 8 6dB Bandwidth ±0.2MHz 9 Power Spectral Density ±0.3dBm Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260812009R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 5 of 28 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Product Name: Smart Watch Trademark N/A Model No.: RK168, RK100, RK128, RK158, RK200, RK268, RK300, RK400, RK520, RK600, RK700, RK800, AK17G, BH11, AK15, AK73, AK75, AK82, AK83, AK86, AK87, AK88, AK91, AK92, AK93, AK95, AK102, AK103, AK105, AK106, AK107, AK108, AK109, AK112 Model Difference All models are same as the samples except model name and color, they have the same structure and circuit…

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Page 1-- 1 - Shenzhen Rongkang Technology Co., Ltd. APPROVAL SHEET FOR BT （2.4G band internal antenna） Issued by Checked by Confirmed by Date 2026-08-11 Customer Confirm Room905,Huayu Science and Technology Building, Niulanqian Industrial Zone. Minzhi Street. Xinniu Community, Minzhi Street. Longhua District, Shenzhen, Guangdong, China Page 1-- 2 - Revision History Date Revision Description of Changes 2026-08-11 R:A Antenna performance approved by customer 1 SUMMARY 2 GENERAL DESCRIPTION 2.1 Definitions 3 MECHANICAL DESCRIPTION 4 ELECTRICAL PERFORMANCE 4.1 Set-up 4.1.1 VSWR and return loss 4.1.2 Efficiency, Gain and TRP/TIS 4.1.3 Matching Circuit Description 4.2 Measurement Data 4.2.1 VSWR 4.2.2 Active result 5 MECHANICAL DRAWING 6 CONCLUSION Page 4-- 3 - 1 Summary This report summarizes the electrical results of the proposed antenna to support the BT program. We test the antenna with the latest version handset . 2 General Description 2.1 Definitions VSWR: Voltage Standing Wave Rate 3 Mechanical Description 4 Electrical Performance 4.1 Set-up 4.1.1 VSWR and return loss VSWR measurements (S 11 ) were performed using an Agilent E5070B Network Analyzer and the previously described test fixture. Coaxial chokes were used to mitigate surface currents on the outside of the cabling. The testing was performed in free space. 4.1.2 Efficiency, Gain and TRP/TIS The gain of the antenna was measured in Dong Xin’s 3D anechoic chamber in Shenzhen. The chamber is capable of doing tests from 380MHz to 6GHz. Coaxial chokes on the feed cable were used to mitigate surface currents. The measurement results are calibrated using dipole standards. For TRP and TIS the chamber uses a Agilent 8960 to establish the connection with the mobile device. During TRP tests the 8960 reads the power received through the chamber probes whilst during TIS tests the 8960 transmits through the probe. All data is afterwards corrected by a calibration table. 4.1.3 Matching Circuit Description No matching. 4.2 Measurement Data Page 4-- 4 - Specification: Single strand, wire diam…

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