2BW2Y-YD820Smart watch

英语.....................................01-02 德语........................................03 法语........................................04 意大利语....................................05 葡萄牙语....................................06 西班牙语....................................07 捷克语......................................08 荷兰语......................................09 瑞典语......................................10 希腊语......................................11 波兰语......................................12 匈牙利语....................................13 丹麦语......................................14 芬兰语......................................15 罗马尼亚语..................................16 斯洛伐克语..................................17 挪威语......................................18 中文........................................19 日语........................................20 韩语........................................21 俄语........................................22 阿拉伯语....................................23 土耳其语....................................24 希伯来语....................................25 01 English/英语 02 NOTE 2: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 1 Scannen Sie den QR-Code der Smartwatch oder laden Sie die „GloryFitPro“-APP in den gängigen App-Stores herunter und installieren Sie sie. Wenn die APP zum ersten Mal geöffnet wird, erscheint ein Pop-up-Fenster mit einer Berechtigung. Bitte klicken Sie auf „Zulassen“, um sicherzustellen, damit die App die entsprechenden Berechtigungen erhalten kann. Während des Verbindungsvorgangs erscheint ein Pop-up-Fenster zur Bestätigung der Kopplung mit der Smartwatch und dem Smartphone. Bitte klicken Sie darauf, um die Kopplung zu bestätigen. Nach erfolgreicher Verbindung werden das Anrufsymbol und das Datenverbindungssymbol in der Statusleiste der Smartwatch grün. Wenn es grau ist, ist die Verbindung nicht hergestellt. iOS: Suchen Sie „Entbinden“ in der Schnittstelle „Gerät“ der APP und klicken Sie darauf, um die Schnittstelle „Einstellungen - Bluetooth“ des Handysystems aufzurufen. Klicken Sie auf die Schaltfläche „� “ auf der rechten Seite des Geräts und wählen Sie „Dieses Gerät vergessen“, um es vom Handysystem zu entbinden. Stellen Sie sicher, dass das Gerät nicht mehr mit dem Handy verbunden ist, sonst kann es sich beim nächsten Mal nicht mehr verbinden. Android: Suchen Sie „Entbinden“ in der Schnittstelle „Gerät“ der APP und klicken Sie darauf, um das Gerät vom Smartphone zu trennen. 03 1.Produkteinführung und Tastenanleitung 2.Bedienungsanleitung für den Touchscreen 3.APP-Verbindung 4. Offline-Download geomorpher Karten 5. APP entbinden 1、Power-Taste / Zurück Halten Sie die Zifferblatt-Schnittstelle 2-3 Sekunden lang gedrückt, um zwischen den Zifferblatt-Schnittstellen zu wechseln. Streichen Sie die Zifferblatt-Schnittstelle nach links und rechts, um die Zifferblatt-Schnittstelle auszuwählen. Klicken Sie einmal darauf, um eine Zifferblatt-Schnittstelle zu bestätigen.shtur-Verbindung Streichen nach unten: Streichen Sie die Zifferblatt-Schnittstelle nach unten, um die Statusleiste aufzurufen. Streichen nach oben: Streichen Sie die Zifferblatt-Schnittstelle nach oben, um die Shortcut-Funktion zu aktivieren. Streichen nach links: Streichen Sie die Zifferblatt-Schnittstelle nach links, um das Hauptmenü aufzurufen. Streichen nach rechts: Streichen Sie die Zifferblatt-Schnittstelle nach rechts, um die Benachrichtigung aufzurufen. Suchen Sie in den „Geräten“ der GloryFitPro-APP nach der „Geomorphischen Karte“ und wählen Sie einen Kartenradiusbereich zwischen 2 und 20 Kilometern aus, um ihn auf das Gerät zu übertragen. Wischen Sie nach der Übertragung auf einer Trainingsoberfläche mit erfolgreicher GPS-Verbindung nach rechts, um die geomorphische Karte zusammen mit der während Ihrer Aktivität erstellten Route anzuzeigen. Drücken Sie eine beliebige Taste, um zur Trainingsoberfläche zurückzukehren. /德语 04 /法语 Scannez le code QR de la montre ou allez sur les principaux marchés d'applications pour télécharger et installer l'APP "GloryFitPro". Lorsque vous ouvrez l'application pour la première fois, une fenêtre pop-up d'autorisation s'affichera. Veuillez cliquer sur "Autoriser" pour vous assurer que l'APP peut obtenir les autorisations correspondantes. Pendant la connexion, une fenêtre pop-up apparaîtra pour confirmer la connexion appairée avec votre montre et votre téléphone. Veuillez cliquer pour confirmer le jumelage. Une fois la connexion réussie, l'icône d'appel et l'icône de connexion de données dans la barre d'état de la montre deviennent vertes. Le gris indique non connecté. IOS: dans l'interface "device" de l'application, recherchez "Unbound" et appuyez sur "Setup Bluetooth" pour accéder à l'interface du système de votre téléphone. Cliquez" "Sur le côté droit de l'appareil, sélectionnez oublier cet appareil pour le dissocier du système de téléphonie mobile. Assurez-vous qu'il n'est plus connecté à votre téléphone, sinon vous ne pourrez pas le reconnecter la prochaine fois. Android: trouvez "Unbound" dans l'interface "device" de l'app et déconnectez-vous de votre téléphone en un clic 1.Introduction au produit et définition du bouton 2.Définition de contrôle d'écran tactile 3.Connexion à l'application 4. Téléchargement de carte géomorphique hors ligne 5. Dissocier l'app 1、bouton d'alimentation / touche de retour Sur l'interface du cadran, maintenez le cadran enfoncé pendant 2-3 secondes pour basculer le cadran. Balayez vers la gauche ou la droite pour changer de cadran, puis cliquez sur Sélectionner un cadran. Balayage vers le bas: balayez vers le bas sur l'interface du cadran pour ouvrir la barre d'état Glisser vers le haut: glissez vers le Haut sur l'interface du cadran pour accéder à la fonction de raccourci de carte Balayer vers la gauche: balayez vers la gauche sur l'interface du cadran pour accéder à l'interface du menu principal Balayez vers la droite: balayez vers la droit…

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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 Yundingji Technology Co., Ltd. Product Description: Smart watch Grantee code: 2BW2Y FCC ID: 2BW2Y-YD820 FRN: 0038643227 Contact Name: Ling Xiong Address: A508 Hongwan Business Center, Gushu, Xixiang, Bao'an District, Shenzhen City Telephone No: +86-13530977589 Email: [email protected] [Shenzhen Yundingji 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 Yundingji 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: 2026/08/18 Applicant’s Name: Ling Xiong 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 Yundingji 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 Yundingji Technology Co., Ltd. Grantee code: 2BW2Y FCC ID: 2BW2Y-YD820 FRN: 0038643227 Contact Name: Ling Xiong Address: A508 Hongwan Business Center, Gushu, Xixiang, Bao'an District, Shenzhen City Telephone No: +86-13530977589 Fax No: +86-13530977589 Email: [email protected] i. [Shenzhen Yundingji 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 Yundingji 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 Yundingji 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: 2026/08/18 Applicant’s Name: Ling Xiong 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 Yundingji 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 Yundingji Technology Co., Ltd. Grantee code 2BW2Y FCC ID 2BW2Y-YD820 FRN 0038643227 Contact name Ling Xiong Address A508 Hongwan Business Center, Gushu, Xixiang, Bao'an District, Shenzhen City Telephone number +86-13530977589 E-mail [email protected] Chipset/module information ATS3085S 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: Ling Xiong Date:2026-08-18 1 The justification field is used to justify why the software cannot be received through that interface. Check the annex for more indications.

TCB CALL página 1 File FCC ID: 2BW2Y-YD820 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" >

C5266091_X10_Ed.2 1/1 Shenzhen Yundingji Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2026.08.18 Subject: Request for Confidentiality FCC ID: 2BW2Y-YD820 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: Ling Xiong Title: Manager 2026.08. 18

C5266091_X8_Ed.1 1/1 Letter of Authorization Shenzhen Yundingji Technology Co., Ltd. Company: Shenzhen Yundingji Technology Co., Ltd. Address: A508 Hongwan Business Center, Gushu, Xixiang, Bao'an District, Shenzhen City Product Name: Smart watch Model Number: YD820 FCC Identifier: 2BW2Y-YD820 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: Ling Xiong Date: 2026.08.18 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. ※※※※※ END OF REPORT ※※※※※

Size: 10*3mm FCC ID: 2BW2Y-YD820 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: 2BW2Y-YD820 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, For BT EDR Peak Output Power (dBm) Max tune-up (mW) Frequency (MHz) Min. distance(mm) Calc. thresholds limit 4.77 3.00 2402 5 0.93 3.0 So a SAR test is not required

Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260729021R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 1 of 33 FCC Part 15C Test Report FCC ID: 2BW2Y-YD820 Applicant: Shenzhen Yundingji Technology Co., Ltd. Address: A508 Hongwan Business Center, Gushu, Xixiang, Bao'an District, Shenzhen City Manufacturer: Shenzhen Yundingji Technology Co., Ltd. Address: A508 Hongwan Business Center, Gushu, Xixiang, Bao'an District, Shenzhen City Product Name: Smart watch Trade Mark: N/A Model Number: YD820 Date of Receipt: Jul. 28, 2026 Test Date: Jul. 28, 2026 – Aug. 06, 2026 Date of Report: Aug. 06, 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-260729021R 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-260729021R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 2 of 33 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 11 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 22 3.3.1 TEST REQUIREMENT: 22 3.3.2 TEST PROCEDURE 22 3.3.3 DEVIATION FROM TEST STANDARD 22 3.3.4 TEST SETUP 23 3.3.5 EUT OPERATING CONDITIONS 23 4 . PEAK OUTPUT POWER 28 4.1 APPLIED PROCEDURES / LIMIT 28 4.1.1 TEST PROCEDURE 28 4.1.2 DEVIATION FROM STANDARD 28 4.1.3 TEST SETUP 28 4.1.4 EUT OPERATION CONDITIONS 28 Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260729021R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 3 of 33 Table of Contents Page 4.1.5 TEST RESULTS 28 5 . NUMBER OF HOPPING CHANNEL 29 5.1 APPLIED PROCEDURES / LIMIT 29 5.1.1 TEST PROCEDURE 29 5.1.2 DEVIATION FROM STANDARD 29 5.1.3 TEST SETUP 29 5.1.4 EUT OPERATION CONDITIONS 29 5.1.5 TEST RESULTS 29 6 . BANDWIDTH TEST 30 6.1 APPLIED PROCEDURES / LIMIT 30 6.1.1 TEST PROCEDURE 30 6.1.2 DEVIATION FROM STANDARD 30 6.1.3 TEST SETUP 30 6.1.4 EUT OPERATION CONDITIONS 30 6.1.5 TEST RESULTS 30 7 . HOPPING CHANNEL SEPARATION MEASUREMENT 31 7.1 APPLIED PROCEDURES / LIMIT 31 7.1.1 TEST PROCEDURE 31 7.1.2 DEVIATION FROM STANDARD 31 7.1.3 TEST SETUP 31 7.1.4 EUT OPERATION CONDITIONS 31 7.1.5 TEST RESULTS 31 8 . DWELL TIME OF OCCUPANCY 32 8.1 APPLIED PROCEDURES / LIMIT 32 8.1.1 TEST PROCEDURE 32 8.1.2 DEVIATION FROM STANDARD 32 8.1.3 TEST SETUP 32 8.1.4 EUT OPERATION CONDITIONS 32 8.1.5 TEST RESULTS 32 9 . ANTENNA REQUIREMENT 33 9.1 STANDARD REQUIREMENT 33 9.2 EUT ANTENNA 33 10 . TEST SETUP PHOTO 33 11 . EUT PHOTO 33 Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260729021R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 4 of 33 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)(iii) Number of Hopping Frequency PASS 15.247(a)(iii) Dwell Time PASS 15.247(a)(1) Bandwidth PASS 15.247(a)(1) Hopping Channel Separation PASS 15.203 Antenna Requirement PASS NOTE: (1)” N/A” denotes test is not applicable in this Test Report 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 20dB Bandwidth ±0.2MHz Shenzhen DL Testing Technology Co., Ltd. Report No.: DLE-260729021R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 5 of 33 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Product Name: Smart watch Trade Mark: N/A Model Number: YD820 Model Difference N/A Operation Frequency: 2402~2480MHz Channel numbers: 79 Channels Channel separation: 1MHz Modulation technology: GFSK, π/4 DQPSK, 8DPSK Antenna Type: Internal Antenna Antenna gain: 1.49dBi Power supply: DC 3.8V from battery DC 5V from charger Note: 1.For a more detailed features description, please refer to the manufacturer’s specifications or the User's Manual. 2.The EUT’s all information provided by client. 2. Channel List Channel Frequency (MHz) Channel Frequency (MHz) Channel Frequency (MHz) 00 2402 27 2429 54 2456 01 2403 28 2430 55 2457 02 2404 29 2431 56 2458 ~ ~ ~ ~ ~ ~ 08 2410 35 24…

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Page1of4 AntennaDescribe AntennaInternalAntenna AntennaGain1.49dBi FrequencyRange2.4Ghz-2.483Ghz ConnectorTypeDirect Locationofmeasurement(companyname) ShenzhenYundingjiTechnologyCo.,Ltd. Manufacturer: ShenzhenYundingjiTechnologyCo.,Ltd. Address: A508HongwanBusinessCenter,Gushu,Xixiang,Bao'an District,ShenzhenCity Page2of4 AntennaPhoto&Length(mm) Page3of4 1.Characteristicscurve 1.1S11/SWR Page4of4 2.2DRadiationcharacteristicsofantenna 2.1Frequency 2400MHz2410MHz2420MHz2430MHz2440MHz2450MHz2460MHz2470MHz2480MHz 2.2ResultSummary Freq.[GHz]Eff.[%]Avg.[dBi]Peak[dBi] 2.459.7-2.241.34 2.4161.8-2.091.43 2.4259.88-2.231.29 2.4359.23-2.271.25 2.4459.98-2.221.32 2.4561.23-2.131.49 2.4658.39-2.341.47 2.4756.82-2.461.4 2.4855.76-2.541.26

Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 1 of 49 ANNEX TEST DATA EDR FCC ID: 2BW2Y-YD820 Applicant: Shenzhen Yundingji Technology Co., Ltd. Address: A508 Hongwan Business Center, Gushu, Xixiang, Bao'an District, Shenzhen City Manufacturer: Shenzhen Yundingji Technology Co., Ltd. Address: A508 Hongwan Business Center, Gushu, Xixiang, Bao'an District, Shenzhen City Product Name: Smart watch Trade Mark: N/A Model Number: YD820 Date of Receipt: Jul. 28, 2026 Test Date: Jul. 28, 2026 – Aug. 06, 2026 Date of Report: Aug. 06, 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-260729021R Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 2 of 49 1. Bandwidth 1.1.1 20dB BW Mode TX Type Frequency (MHz) Packet Type ANT 20dB Bandwidth (MHz) Verdict Result Limit GFSK SISO 2402 DH5 1 1.029 / Pass 2441 DH5 1 1.039 / Pass 2480 DH5 1 1.033 / Pass Pi/4DQPSK SISO 2402 2DH5 1 1.291 / Pass 2441 2DH5 1 1.318 / Pass 2480 2DH5 1 1.291 / Pass 8DPSK SISO 2402 3DH5 1 1.303 / Pass 2441 3DH5 1 1.310 / Pass 2480 3DH5 1 1.306 / Pass Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 3 of 49 1.2 Test Graph 1.2.1 20dB BW GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 4 of 49 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 5 of 49 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 6 of 49 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 7 of 49 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 8 of 49 2. Maximum Conducted Output Power 2.1 Test Result 2.1.1 Power Mode TX Type Frequency (MHz) Packet Type Maximum Peak Conducted Output Power (dBm) Verdict ANT1 Limit GFSK SISO 2402 DH5 3.55 <=20.97 Pass 2441 DH5 2.64 <=20.97 Pass 2480 DH5 1.43 <=20.97 Pass Pi/4DQPSK SISO 2402 2DH5 4.42 <=20.97 Pass 2441 2DH5 3.52 <=20.97 Pass 2480 2DH5 2.25 <=20.97 Pass 8DPSK SISO 2402 3DH5 4.77 <=20.97 Pass 2441 3DH5 3.86 <=20.97 Pass 2480 3DH5 2.64 <=20.97 Pass Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 9 of 49 2.2 Test Graph 2.2.1 Power GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 10 of 49 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 11 of 49 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTN…

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