2BK3M-UT5ULTRAUSElectric Scooter

NAVEE Electric Scooter UT5 Ultra X US ENImportant Information FR-CAInformations importantes ES-LAInformación de seguridad 0102 ENEN ·The scooter shall be used by one person only. Obligation to always wear shoes. Do not divert the use of the vehicle. This scooter is not intended for acrobatic or stunt use. ·Adult Use Only. The product is recommended for riders above age of 18 and below age of 50. People who are not suitable for riding this product include: (1) Persons under the influence of alcohol or drugs. (2) Persons who are unable to engage in strenuous physical activity due to illness or medical conditions. (3) Persons with poor IMPORTANT SAFETY INSTRUCTIONS IMPORTANT! Please read carefully before using the product and keep for future reference. For detailed e-manual, please visit www.naveetech.com. When using an electrical appliance, basic precautions should always be followed, including the following: READ ALL INSTRUCTIONS BEFORE USING THIS APPLIANCE. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. SAVE THESE INSTRUCTIONS Prolonged Exposure to UV Rays, Rain and the Elements May Damage the Enclosure Materials. Store Indoors When Not in Use. WARNING– To reduce the risk of injury, user must read instruction manual. Safety Information Original instructions balance or impaired motor skills. (4) Persons whose weight exceeds the product limit. (5) Pregnant women. (6) Persons with visual or hearing impairments. ·Comply with local laws and regulations when riding this product. Do not ride where prohibited by local laws. ·In c ountries or regions where there are currently no national standards or regulations regarding electric scooters, you must strictly follow the safety instructions outlined in this manual when operating the product. Failure to do so may pose safety risks to children. SPACEWALKER PTE. LTD. shall not be held directly or jointly liable for any personal injury, property damage, accidents, legal disputes, or any other adverse consequences resulting from misuse or use in violation of the guidance provided in this manual. ·Do not ride in tr affic lanes or residential areas where vehicles and pedestrians are both allowed. When passing through a place designated for pedestrians who are entitled to the right-of-way laws like crosswalk, please get off to walk along with the scooter. ·For your first ride, avoid areas where children, pedestrians, pets, vehicles, bicycles, or other obstacles may appear. ·P erform a basic inspection of the electric scooter before each ride. If there are abnormal conditions such as loose parts, low battery alerts, flat tires or excessive wear of tires, strange sounds, malfunctions and other abnormal conditions, stop riding immediately and call for professional support. ·T ake the time to learn the basics of the practice to avoid any serious accident that can take place in the first months. Information on practice and safe use (can be found on the website: www. naveetech.com) 0304 ENEN ·Ensure clear visibility and make sure others can see you while riding. ·Do not ride in bad weather, low visibility, or after intense physical exertion. ·Do t urn on the headlight and slow down the speed when you ride at dark. ·A lways park the scooter with kickstand on an even and stable surface. ·This electric scooter is a leisure device. However, when entering a public area, it will be considered a means of transportation and subject to possible safety risks for all means of transportation. Riding in strict accordance with the instructions in this manual will protect you and others to the greatest extent. ·The user should check the limit s of use in accordance with the local regulations. Ride the scooter on the roads or areas permitted by local regulations and laws and park it in the areas permitted. If the local regulations and laws have different provisions on the maximum speed, the local regulations and laws will prevail. Please respect and follow the road safety and vehicle rules. ·R espect pedestrians' Right of Way. Try not to startle them while driving, especially children. When you ride from behind pedestrians, ring your bell to give them a heads-up and slow your scooter down to pass from their left, and keep to the right at a low speed while riding across them (applicable to countries where vehicles drive on the right). When you drive across pedestrians, keep the lowest speed or getting off the vehicle. ·In an y case, anticipate your trajectory and your speed while respecting the code of the road, the code of the sidewalk and the most vulnerable. Notify your presence when approaching a pedestrian or cyclist when you are not seen or heard. Cross the protected passages while walking. Cross the protected passages while walking. Avoid high traffic areas or overcrowded areas. ·Riding with high speed or a speed that is not appropriate or adequate for the situation (bad weather conditions, bad surface conditions, or the like) may lead into a potential loss of stability or loss of control. To reduce any risk, you must follow all instructions in this manual. Be careful when mounting and dismantling the product, it may fall and cause injury. ·T raffic in the city has many obstacles to cross such as curbs or steps. It is recommended to avoid obstacle jumps. It is important to anticipate and adapt your trajectory and speed to those of a pedestrian before crossing these obstacles. It is also recommended to get out of the vehicle when these obstacles become dangerous due to their shape, height or slippage. ·Do not lend y our scooter to whoever does not know the operations. Before lending the electric scooter to others, please make sure that the rider has read this instruction manual and watched the instruction video, and understood the basic operation. Remind riders to wear safety protection correctly to ensure the safety of riders. ·C ontact your seller for appropriate training organizations. ·In all c ases, take care …

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Company name: SPACEWALKER PTE. LTD. ADD: 60 PAYA LEBAR ROAD SINGAPORE Singapore TEL: +86 18861121657 FAX: N/A E-mail: [email protected] Attestation Letter Date: 2025/11/06 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911 (d) (5) (i) (ii) Filing FCC ID: 2BK3M-UT5ULTRAUS SPACEWALKER PTE. 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. SPACEWALKER PTE. 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. SPACEWALKER PTE. LTD. (“the applicant”) certifies that the equipment does not use Kaspersky's software information. Sincerely, Signature: Printed Name: xingyu hu Title: Certification Engineer

U.S. AGENT LETTER OF ATTESTATION Date: 2025-12-23 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(7) Filing FCC ID: 2BK3M-UT5ULTRAUS SPACEWALKER PTE. LTD. certifies that, as of the date of the filing of the application, FCC US Agent, LLC is our designated U.S. agent for service of process for the above referenced FCC ID. SPACEWALKER PTE. 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 the equipment. FCC US Agent, LLC accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company Name: FCC US Agent, LLC Address: 3722 Illinois Avenue, Saint Charles, IL 60174, United States FRN: 0033402884 Tel.: 708-571-3148 Email: [email protected] Signed by (printed name): Tim Payne Signature: Applicant: SPACEWALKER PTE. LTD. Address: 60 PAYA LEBAR ROAD SINGAPORE Singapore FRN: 0035939636 Tel: +86 18861121657 Email: [email protected] Signed by (printed name): xingyu hu Signature:

QA-FR-170-B Company name: SPACEWALKER PTE. LTD. ADD: 60 PAYA LEBAR ROAD SINGAPORE Singapore TEL: +86 18861121657 FAX: N/A E-mail: [email protected] FCC Authorization Date: 2025/11/06 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We, SPACEWALKER PTE. LTD., hereby authorizes Bay Area Compliance Laboratories Corp. (Kunshan) to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Bay Area Compliance Laboratories Corp. (Kunshan) on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely, Signature: Printed Name: xingyu hu Title: Certification Engineer

QA-FR-171-A Company name: SPACEWALKER PTE. LTD. ADD: 60 PAYA LEBAR ROAD SINGAPORE Singapore TEL: +86 18861121657 FAX: N/A E-mail: [email protected] FCC Confidential Authorization Date: 2025/11/06 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2BK3M-UT5ULTRAUS In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, SPACEWALKER PTE. LTD. hereby requests long-term confidential treatment of information accompanying this application as outlined below: Block Diagram Schematics Operation Description Theabove materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely, Signature: Printed Name: xingyu hu Title: Certification Engineer

Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA251106001 1 / 4 EXHIBIT A - EUT EXTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA251106001 2 / 4 Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA251106001 3 / 4 Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA251106001 4 / 4

丕 ^ 2 卢 千 R2 165 mm 85 mm Electric Scooter Rated Voltage/Tension Nominale/oltaje nominal: 57.6 Vdc IP Rating/Indice IP/Clasificación IP: IPX6 Model/Modèle/Modelo: UT5 Ultra X USSPU: UT5 Ultra X Rated Input/Entrée nominale/Entrada nominal: 67.2 Vdc 3.75 A Net Weight/Poids net/Peso neto: 90.4 lbs (41 kg)Max. Load/Charge max./Carga máx.: 330.7 lbs (150 kg) Motor Rated Power/Puissance nominale du moteur/Energía nominal de motor: 1200 W × 2 (1.2 kW × 2) Rated Energy/Énergie nominale/Energía nominal: 1284.48 Wh CAN ICES(B)/NMB(B) Max. Speed/Vitesse max./Velocidad máx.: 44 mph (70 km/h) HVIN: V7.0.3 IC: 33043-UT5ULTRAUS SPACEWALKER PTE. LTD. FCC ID: 2BK3M-UT5ULTRAUS F actory ID/ID de l’usine/ID de fábrica: Hangzhou Address/Adresse/Dirección: 60 PAYA LEBAR ROAD #07-54 PAYA LEBAR SQUARE SINGAPORE (409051) This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Adult Use Only/Réservé aux adultes/Solo para uso de adultos Store Indoors When Not in Use./Guardar en interiores cuando no lo utilice./Rangez le scooter à l'intérieur lorsqu’il n’est pas utilisé. Made in China/Fabriqué en Chine/Fabricado en China WARNING – To reduce the risk of injury, User must read instruction manual. WARNING – Risk of Fire and Electric Shock –Battery components are not user replaceable. WARNING – Hazardous Voltage Circuits. AVERTISSEMENT–Pour déduire le risque de blessure, l’utilisateur doit lire la notice d’instruction. AVERTISSEMENT – Risque d’incendie et de choc électrique – Les composants de la batterie ne peuvent pas être remplacés par l’utilisateur. AVERTISSEMENT-Circuits à haute tension dangereus. ADVERTENCIA–El usuario debe leer el manual de instrucciones, para evitar posibles lesiones. ADVERTENCIA–Riesgo de incendio y de descarga eléctrica. Los componentes de la batería no son reemplazables por el usuario. ADVERTENCIA–Circuitos de voltaje peligroso.

Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA251106001 1 / 7 EXHIBIT B - EUT INTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA251106001 2 / 7 Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA251106001 3 / 7 Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA251106001 4 / 7 BLE Module Module 1(RB8762-35A2) BLE/BT Module Module 2(IB727T1) Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA251106001 5 / 7 BT/BLE Antenna Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA251106001 6 / 7 BLE Antenna Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA251106001 7 / 7

Bay Area Compliance Laboratories Corp. (Kunshan) Report No.: RKSA251106001-00B Page 13 of 83 FCC §1.1307(b) & §2.1093 - RF EXPOSURE Applicable Standard According to§2.1093and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission’s guideline. According to KDB 447498 D01 General RF Exposure Guidance The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/ (min. test separation distance, mm)] · [√f (GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where 1. f (GHz) is the RF channel transmit frequency in GHz. 2. Power and distance are rounded to the nearest mW and mm before calculation. 3. The result is rounded to one decimal place for comparison. 4. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test Exclusion. Measurement Result Standalone SAR test exclusion Module 1(RB8762-35A2) Mode Frequency Range (MHz) Max Tune-up Conducted Power Calculated Distance (mm) Calculated Value Threshold (10-g SAR) SAR Test Exclusion (dBm) (mW) BLE 1M 2402-2480 7.0 5.01 5 1.6 7.5 Yes BLE 2M 2404-2478 7.0 5.01 5 1.6 7.5 Yes Module 2(IB727T1) Mode Frequency Range (MHz) Max Tune-up Conducted Power Calculated Distance (mm) Calculated Value Threshold (10-g SAR) SAR Test Exclusion (dBm) (mW) BLE 1M 2402-2480 0.5 1.12 5 0.4 7.5 Yes BLE 2M 2402-2480 0.5 1.12 5 0.4 7.5 Yes BT 2402-2480 1.5 1.41 5 0.4 7.5 Yes Bay Area Compliance Laboratories Corp. (Kunshan) Report No.: RKSA251106001-00B Page 14 of 83 Standalone SAR estimation: Module 1(RB8762-35A2) Mode Frequency Range (MHz) Max Tune-up Conducted Power Calculated Distance (mm) Calculated Value Estimated10-g (W/kg) (dBm) (mW) BLE 1M 2402-2480 7.0 5.01 5 1.6 0.085 BLE 2M 2404-2478 7.0 5.01 5 1.6 0.085 Module 2(IB727T1) Mode Frequency Range (MHz) Max Tune-up Conducted Power Calculated Distance (mm) Calculated Value Estimated10-g (W/kg) (dBm) (mW) BLE 1M 2402-2480 0.5 1.12 5 0.4 0.021 BLE 2M 2402-2480 0.5 1.12 5 0.4 0.021 BT 2402-2480 1.5 1.41 5 0.4 0.021 The EUT is a limb-worn devices.When standalone SAR test exclusion applies to an antenna that transmits simultaneously with other antennas, the standalone SAR must be estimated according to following to determine simultaneous transmission SAR test exclusion: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)]·[√f(GHz)/x] W/kg for test separation distances ≤ 50 mm; where x = 18.75 for 10-g SAR. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion Module 1 and module 2 can Simultaneous Transmit Simultaneous SAR test exclusion considerations: Mode Reported SAR (W/kg) ΣSAR < 4.0W/kg SAR 1 SAR 2 Module 1+Module 2 0.085 0.021 0.106 Conclusion: ΣSAR < 4.0 W/kg therefore simultaneous transmission SAR is not required.

FCC Part 15.247 Page 1 of 83 FCC PART 15.247 TEST REPORT For SPACEWALKER PTE. LTD. 60 PAYA LEBAR ROAD SINGAPORE Singapore FCC ID: 2BK3M-UT5ULTRAUS R e p o r t T y p e : O r i gi n a l R e p o r t P r o d u c t N a m e: E l e c t r i c S c o o t e r Report Number: RKSA251106001-00B Report Date: 2026-01-19 Reviewed By: Jenny Yang Approved By: Kyle Xu Test Laboratory: Bay Area Compliance Laboratories Corp. (Kunshan) No.248 Chenghu Road, Kunshan, Jiangsu Province, China Tel: +86-512-86175000 Fax: +86-512-88934268 www.baclcorp.com.cn Note: This test report is prepared for the customer shown above and for the device described herein. It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. (Kunshan). This report must not be used by the customer to claim product certification, approval, or endorsement by NVLAP, or any agency of the U.S. Govemment. Bay Area Compliance Laboratories Corp. (Kunshan) Report No.: RKSA251106001-00B Page 2 of 83 TABLE OF CONTENTS REPORT REVISION HISTORY................................................................................................................................. 4 GENERAL INFORMATION ....................................................................................................................................... 5 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 5 OBJECTIVE ................................................................................................................................................................... 5 TEST METHODOLOGY .................................................................................................................................................. 5 MEASUREMENT UNCERTAINTY .................................................................................................................................... 6 TEST FACILITY ............................................................................................................................................................. 6 SYSTEM TEST CONFIGURATION .......................................................................................................................... 7 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 7 EUT EXERCISE SOFTWARE .......................................................................................................................................... 7 SPECIAL ACCESSORIES ................................................................................................................................................. 7 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 7 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 8 EXTERNAL I/O CABLE.................................................................................................................................................. 8 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 8 SUMMARY OF TEST RESULTS ............................................................................................................................. 10 TEST EQUIPMENT LIST ......................................................................................................................................... 11 FCC §1.1307(b) & §2.1093 - RF EXPOSURE ........................................................................................................... 13 APPLICABLE STANDARD ............................................................................................................................................ 13 MEASUREMENT RESULT ............................................................................................................................................ 13 FCC §15.203 – ANTENNA REQUIREMENT .......................................................................................................... 15 APPLICABLE STANDARD ............................................................................................................................................ 15 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 15 FCC §15.207 (a) – AC LINE CONDUCTED EMISSIONS ..................................................................................... 16 APPLICABLE STANDARD ............................................................................................................................................ 16 TEST SYSTEM SETUP .................................................................................................................................................. 16 EMI TEST RECEIVER SETUP ....................................................................................................................................... 16 TEST PROCEDURE ...................................................................................................................................................... 17 TEST RESULTS SUMMARY .......................................................................................................................................... 17 TEST DATA: SEE APPENDIX ....................................................................................................................................... 17 FCC §15.205, §15.209 & §15.247(d) – RADIATED EMISSIONS ........................................................................... 18 APPLICABLE STANDARD ............................................…

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Antenna test report Project name ： RB8762-35A2 Measuring program ： GenrealTest Systeam （ GTS. ） testing equipment ： Agilent E5071C Test engineer ： Yin Xin The gain standard of EIRP is mainly the implementation standard of Active DUT Test.
Copyright ©2014-2024 Shenzhen Hanyang Antenna Design Co., Ltd. All rights reserved. Date ： 2023-09-26 SHENZHEN HANYANG ANTENNA DESIGN CO.LTD.
Copyright ©2014-2024 Shenzhen Hanyang Antenna Design Co., Ltd. All rights reserved. SHENZHEN HANYANG ANTENNA DES IGN CO.LTD. Copyright ©2014-2024 Shenzhen Hanyang Antenna Design Co., Ltd. All rights reserved. SHENZHEN HANYANG ANTENNA DES IGN CO.LTD.
Copyright ©2014-2024 Shenzhen Hanyang Antenna Design Co., Ltd. All rights reserved. SHENZHEN HANYANG ANTENNA DES IGN CO.LTD. Efficiency_Pcent_%Gain_dBiEfficiency_dBFreq 51.021.21-2.922400 51.941.22-2.852410 52.031.21-2.842420 51.451.13-2.892430 51.091.07-2.922440 50.40.95-2.982450 48.790.78-3.122460 46.850.57-3.292470 44.840.3-3.482480
Copyright ©2014-2024 Shenzhen Hanyang Antenna Design Co., Ltd. All rights reserved. SHENZHEN HANYANG ANTENNA DES IGN CO.LTD. 2450MHz y z x SHENZHEN HANYANG ANTENNA DESIGN CO.LTD. Welcomecallsconsultations,negotiationsandguidancecome! Thankyou
Copyright ©2014-2024 Shenzhen Hanyang Antenna Design Co., Ltd. All rights reserved.

WiFi antenna test report * This report is a confidential archive of Shenzhen Jie Xuntong Wireless Technology Co., LTD. and relevant customers. Please keep it properly and do not disclose it without permission. Test items and equipment systems Test item Test parameter Testing facility 1 、 S parameter VSWR； Smith；Network analyzer: Agilent 5071B 2 、 Passive testing Productiveness Comprehensive tester: Network analyzer: Agilent 5071B Microwave anechoic chamber: GTS Chamber VSWR: VSWR is the abbreviation for Voltage Standing Wave Ratio, referring to the ratio of the amplitude of the reflected wave to that of the incident wave. In an ideal situation where impedance is perfectly matched, the standing wave ratio is 1 . In practical engineering, reflections are inevitable, making the standing wave ratio greater than 1 . The larger the reflection, the higher the standing wave ratio. Therefore, for this technical parameter, the lower the value of the standing wave ratio, the better it is to be close to 1. Return Loss: Return Loss RL refers to the ratio of the power reflected back from the RF input signal to the input signal power. It is measured in dB and can be negative. In an ideal scenario, the impedance between the antenna and the RF circuit matches perfectly, with no reflected power at all , resulting return loss is infinitesimally small. However, in practical applications, impedance matching is impossible, so some reflection power always exists. The worst case is when the input power is completely reflected, in which case the return loss is zero. Therefore, for this technical parameter, a lower value indicates better antenna performance. Effi: Efficiency is the ratio of the power radiated by the antenna (that is, the power effectively converted from part of the electromagnetic wave) to the power input into the antenna. It is a constant value less than 100%. Gain: Antenna gain refers to the ratio of the power density of the signal produced by the actual antenna and the ideal radiation unit at the same point in space under the condition of equal input power. It quantitatively describes the degree to which an antenna concentrates the input power. Generally expressed in dBi units. Smith graph: Impedance circle is a trajectory graph that uses the one-to-one correspondence between normalized impedance and reflection coefficient to represent normalized impedance on the complex plane of reflection coefficient. Key terms: TRP: Total radiation power (Total Radiated Power) is the integral value of the spherical area integral of the effective radiation power EIRP in three-dimensional space (spherical average value) , which reflects the transmission characteristics of the mobile station in all directions. TIS: Total omnidirectional sensitivity (Total Isotropic Sensitivity) is the integral value (average value over the sphere) obtained by integrating the effective radiation reception sensitivity EIS of the mobile station over the three-dimensional space. It reflects the receiving characteristics of the mobile station in all directions. Schematic diagram of whole machine/dark room test Schematic diagram of the whole machine 1 Schematic diagram of dark room test The main board is connected in parallel with 1PF capacitor The main board is connected to a 3NH inductor 2 Antenna diagram 3 Antenna standing wave diagram Note: The main board E2 is connected in series with a 3NH inductor and E1 is connected in parallel with a 1PF capacitor 3PF 1NH NC RF Antenna E2 E3 E1 ↓ ↓ ≡ ≡ 4 Matching instructions Freq (MHz) Gain(dBi)Efficiency (dB)Efficiency (%) 2400 0.307662387-3.874739229 40.97567128 2410 0.260288327 -3.97051999240.08187237 2420 -0.158495319-4.084248116 39.04587759 2430 -0.338371129 -4.089766538.99629526 2440 -0.056188314-4.13931495538.55391668 2450 0.159251499 -4.020785248 39.62063897 2460 0.011375509 -3.99797570539.8292776 2470 -0.135391618-4.001993536 39.79244699 2480 0.013310725-4.153682995 38.42657707 2490 0.294409622 -4.13238510238.61548464 2500 0.193458534-4.14674935638.48797523 5 2.4 G Passive efficiency gain whole machine test data 6 Passive test 3D&2D diagrams 6 Passive test 3D&2D diagrams 6 Passive test 3D&2D diagrams 1.The above is the BLE passive test data. 2 .Please be aware of the above. If you have any questions, please contact us. Thank you! 7 Remarks

Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA251106001 1 / 4 EXHIBIT C - TEST SETUP PHOTOGRAPHS Conducted Emissions (Front View) Conducted Emissions (Left View) Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA251106001 2 / 4 Radiated Emissions (Below 30 MHz) Radiated Emissions (Below 1 GHz) Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA251106001 3 / 4 Radiated Spurious Emissions (1 GHz-18GHz) Radiated Spurious Emissions ( 18 GHz-25 GHz) 1.5m Bay Area Compliance Laboratories Corp. (Kunshan) Project No.: RKSA251106001 4 / 4 RF Conducted