2BHSU-AO-K8Electric Balance Bike

AO-K8 PLEASE READ THE INSTRUCTIONS CAREFULLY BEFORE USERMANUAL RIDING Scan QR Code Or Enter URL for Online Installation https://www.youtube.com/watch?v=CRHN9hgy1iw Read This Manual Before Using DISCLAIMER & WARNING Disclaimer & Warning Disclaimer & Warning Why Is It Necessary To Read This Manual Before Operating? 1、 This manual was written to help you understand the proper use and maintenance of the 2、 AOKDA line of Electric Balance Bike. It is important to understand the functions and features of the new AOKDA before operating it as it will allow you to enjoy it from every ride. During the cycling process, comprehensive safety measures should be taken, and risk awareness and good judgment should be maintained at all times to avoid injuries as much as possible. -The responsibility for AOKDA maintenance is yours! Proper and frequent maintenance will reduce risks of injuries. -Please wear a helmet, protective gear, and other safety measures when riading. -Always follow local laws and regulations. -Do not perform stunts, spins or jumps; if you insist on doing these dangerous actions, please take full protective measures. Product Details··································································································································1 Product Parameters·························································································································· 2 Products & Accessories··················································································································· 3 Product Installation··························································································································4~5 Power On & Functional operation ·································································································· 6 Safe Driving Warning······················································································································ 7~8 Battery & Charging························································································································· 9~10 After Sales········································································································································ 11 Limited Warranty····························································································································· 12 Warranty Card·································································································································· CONTENT 13 1 01: Handle 02: Fixed fastener 03: Battery box 04:Side lights Product Details 05: Front fork 06: Front wheel 07: Power on button 08: Foot pedal 09: Saddle 10: Reflector 11: Charging port 12: Motor 13: Rear wheel 14: Accelerator 15: Brake 2 ProductParameters Model Tire AO-K8Size 12 inch Battery 24V/5.2Ah Tyre Type Airtires Charging Power 180 time 3~3.5 hours Frame LightFantasy LightsMaterial Magnesium alloy Max Speed 12KM/H Net Weight 6.7KG Range Gross 10-15KM Weight 9.5KG Max Load Package 40KG Size 77*18*39cm Break Rear power-off brake LightFantasy Lights AdapterInput 100-240 V 50/60Hz 1A, Output 25.2 V 1AMax The weight of the tester is 35kg, and the range of the flat road test is 10-15km. The length of the range depends on the weight of the rider, the riding conditions, and the temperature; If the weight of the cyclist exceeds 35kg, the road conditions are rough, and the temperature is low, the range will be correspondingly shortened. SERIAL NUMBER 3 Products & Accessories ITEM QUANTITY 1 Charger 1 2 Toolkit 1 3 Instructions 1 4 ProductInstallation 01 02 Remove the bearing screws 03 04 05 Lift the body and put the front fork on the bearing screw 06 Use the tool to tighten the left and right screws Remove the Electric Balance Bike from the packaging box Insert the bearing screws into the corresponding holes in the front tire Install matching bearings and screws in sequence 5 12Assemblycompleted 07Prepare the handles Place the handlebars into the 08 corresponding lock mouth Use a tool to tighten the screws at the lock opening to secure 09 the handlebars Aligning the "→" connections on the throttle and brake cable 10 connectors 11 Tighten the seat screws 6 Power On & Functional operation Please wear a helmet and protective gear before cycling, and ensure that all functionsof the Electric Balance Bike are normal before starting your cycling. Press and hold thered brake, then press theblack accelerator twice continuously to switch At the end of the ride, press the power button to switch off the power. the speed(the speed is only 2 gears), and you will hear the "drip, drip" sound after the speed switch i s successful. side to switch the color light mode of the light, while making a "drip" sound. Press the power button, the vehicle is at rest, and only press the black accelerator on the right Press the power button to switch it on . TIRE AIRPRESSURE:THETIRE ISPRESSURIZEDTOTHESTANDARDVALUEONTHE 7 TIRE and you are unsure, please contact thesellertoconfirmsafetybeforeuse. 2)Checkthetyres and wheelsandthat it is not showing signs of wear and tear;Always ensure that the MECHANICALSAFETY Before using theAOKDAElectric Balance Bike: 1)Alwaysperform a visual inspection of allscrews and nuts aretightandinplace.If anything is amiss or SafeDrivingWarning SAFETY GEAR Helmet:Mostcommon and serious injuriesfrom riding areheadinjuries.Thiscanbe prevented by dorning a helmet. You mustwear a helmetwhenridingtheAOKDAElectric Balance Bike.Thehelmet must be warn according to their instruction. missing brake mechanismis not touching thewheels and allowsfree spinning. 3)Alwaysperformmechanicalchecks of brakes and other parts oftheElectric BalanceBikethatallows visibility, safety and functionailty of theElectric Balance Biketobe. Certain countries of regions require safety devices or gear. It is your responsibility to know the state laws and follow them. However, we strongly recomme…

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- Yongkang Sumeide Industry And Trade Co., Ltd - Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 8/23/2024 U.S. Agent Designation Yongkang Sumeide Industry And Trade Co., Ltd acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: 2BHSU-AO-K8): Name and company of U.S. agent: UUX GROUP INC Physical U.S. address of agent: 36 South 18th Avenue, Suite A Brighton, CO USA 80601 FRN of U.S. agent: 0033701590 Email address of U.S. agent: [email protected] UUX GROUP INC acknowledges their obligation to accept service of process on behalf of Yongkang Sumeide Industry And Trade Co., Ltd. Yongkang Sumeide Industry And Trade Co., Ltd with the FRN 0035723006 accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Sincerely, Signature jiaxiong JIN Sales Manager Yongkang Sumeide Industry And Trade Co., Ltd Signature Jack Fu Manager UUX GROUP INC 48_[model] US_Agent_2.911(d)(7) - U, V05

Page 1 of 4 FCC ID: 2BHSU-AO-K8 Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. External Photos Photo 1 Photo 2 Page 2 of 4 FCC ID: 2BHSU-AO-K8 Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. Photo 3 Photo 4 Page 3 of 4 FCC ID: 2BHSU-AO-K8 Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. Photo 5 Photo 6 Page 4 of 4 FCC ID: 2BHSU-AO-K8 Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. ------End------ Photo 7 Photo 8

Label Size: L65mm * W25mm 1. The label is silk-screen on the sample Electric Balance Bike Model Name: AO-K8 FCC ID: 2BHSU-AO-K8 W L

Page 1 of 5 FCC ID: 2BHSU-AO-K8 Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. Internal Photos Photo 1 Photo 2 Page 2 of 5 FCC ID: 2BHSU-AO-K8 Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. Photo 3 Photo 4 Page 3 of 5 FCC ID: 2BHSU-AO-K8 Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. Photo 5 Photo 6 Page 4 of 5 FCC ID: 2BHSU-AO-K8 Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. Photo 7 Photo 8 ANT Page 5 of 5 FCC ID: 2BHSU-AO-K8 Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. ------End------ Photo 9 Photo 10

RF Exposure evaluation FCC ID: 2BHSU-AO-K8 Applicable Standard According to §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to §1.1310 and §2.1093 RF exposure requirement KDB447498 v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies 1.1. Requirement According to KDB447498 D01 General RF Exposure Guidance v06 Section 4.3.1 Standalone SAR test exclusion considerations: “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, listed below, is satisfied. These test exclusion conditions are based on source-based time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune-up tolerance, and the minimum test separation distance required for the exposure conditions.22 The minimum test separation distance is determined by the smallest distance from the antenna and radiating structures or outer surface of the device, according to the host form factor, exposure conditions and platform requirements, to any part of the body or extremity of a user or bystander (see 5) of section 4.1). To qualify for SAR test exclusion, the test separation distances applied must be fully explained and justified by the operating configurations and exposure conditions of the transmitter and applicable host platform requirements, typically in the SAR measurement or SAR analysis report, according to the required published RF exposure KDB procedures. When no other RF exposure testing or reporting is required, a statement of justification and compliance must be included in the equipment approval, in lieu of the SAR report, to qualify for the SAR test exclusion. When required, the device specific conditions described in the other published RF exposure KDB procedures must be satisfied before applying these SAR test exclusion provisions; for example, handheld PTT two-way radios, handsets, laptops & tablets etc.23 “ [(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 • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to 5) in section 4.1 is applied to determine SAR test exclusion. 1.2. Manufacturing tolerance BR - EDR Frequency (MHz) GFSK 2402 2441 2480 Target (dBm) 0 1 0 Tolerance ± (dB) 1.0 1.0 1.0 Frequency (MHz) π/4DQPSK 2402 2441 2480 Target (dBm) 1 2 2 Tolerance ± (dB) 1.0 1.0 1.0 Page 2 of 2 2. E v a l u a t i o n R e s u l t Evaluation Results Band/Mode f (GHz) Antenna Distance (mm) Max.RF output power (including tune-up tolerance) SAR Test Exclusion Threshold SAR Test Exclusion dBm mW BR-EDR 2450 5 3.0 1.995 0.6 <3 Yes 3. C o n c l u s i o n The measurement results comply with the FCC Limit per 47 CFR 2.1093 for the uncontrolled RF Exposure and SAR Exclusion Threshold per KDB 447498 v06 .....................End of Report.........................

Page 1 of 38 Report No.: AITSZ24052404W1 Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. TEST REPORT Client Information: Applicant: Yongkang Sumeide Industry And Trade Co., Ltd Applicant add.: The first floor of No. 5 Workshop, No. 661, Jiuzhou West Road, Yongkang Economic Development Zone, Jinhua, Zhejiang China Manufacturer: Yongkang Sumeide Industry And Trade Co., Ltd. Manufacturer add.: The first floor of No. 5 Workshop, No. 661, Jiuzhou West Road, Yongkang Economic Development Zone, Jinhua, Zhejiang China Product Information: Product Name: Electric Balance Bike Model No.: AO-K8 Series Model: Please refer to page 6 for detail. Brand Name: AOKDA Test samples.: AITSZ24052404001 FCC ID: 2BHSU-AO-K8 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Prepared By: Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Tel.: +86 0755-230967639 Fax.: +86 0755-230967639 Date of Receipt: May 24, 2024 Date of Test: May 24, 2024 ~ June 24, 2024 Date of Issue: June 25, 2024 Test Result: Pass This device described above has been tested by Guangdong Asia Hongke Test Technology Limited and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. Note: This report shall not be reproduced except in full, without the written approval of Guangdong Asia Hongke Test Technology Limited, this document may be altered or revised by Guangdong Asia Hongke Test Technology Limited, personal only, and shall be noted in the revision of the document. This test report must not be used by the client to claim product endorsement. Reviewed by: Approved by: Leon.yi Sean She Page 2 of 38 Report No.: AITSZ24052404W1 Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. 1 Contents Page COVER PAGE 1 CONTENTS .................................................................................................................................................................... 2 2 TEST SUMMARY .......................................................................................................................................................... 4 2.1 Statement of the Measurement Uncertainty ........................................................................................ 4 2.2 Measurement Uncertainty ................................................................................................................... 4 3 TEST FACILITY ............................................................................................................................................................. 5 3.1 Deviation from standard ...................................................................................................................... 5 3.2 Abnormalities from standard conditions .............................................................................................. 5 3.3 Test Location ....................................................................................................................................... 5 4 GENERAL INFORMATION ......................................................................................................................................... 6 4.1 Test frequencies .................................................................................................................................. 7 4.2 EUT Peripheral List ............................................................................................................................. 8 4.3 Test Peripheral List .............................................................................................................................. 8 4.4 TEST METHODOLOGY ...................................................................................................................... 9 4.5 Description of Test Modes ................................................................................................................. 10 5 EQUIPMENT USED DURING TEST ........................................................................................................................ 11 6 TEST RESULTS AND MEASUREMENT DATA .................................................................................................... 12 6.1 Antenna requirement ......................................................................................................................... 12 6.2 Peak Power Measurement ................................................................................................................ 13 6.3 Frequency Separation and 20 dB Bandwidth .................................................................................... 15 6.4 Number of Hopping Frequency ......................................................................................................... 17 6.5 Time of Occupancy (Dwell Time) ...................................................................................................... 18 6.6 Conducted Spurious Emissions and Band Edges Test ..................................................................... 20 6.7 Radiated Emissions and Radiation Restricted band Measurement ................................................. 22 6.8 Conducted Emissions ........................................................................................................................ 34 6.9 Pseudorandom frequency hopping sequence .................................................................................. 37 7 TEST SETUP PHOTOGRAPHS OF EUT ...............................................................…

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Inverted F Antenna Specification Summary ITEM ANT SPEC Model Name 2.4G ANT Horizontal Vertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.26 -0.76 -0.58 -5.25 -2.46 -1.86 MAX. Gain -0.58dBi Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Length 38.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dBi) Frequency (MHz) Max Min Avg 2400 -1.26174 -30.0801 -7.18716 2450 -0.765802 -36.5604 -7.48023 2500 -0.585582 -22.0315 -6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dBi) Frequency (MHz) Max Min Avg 2400 -5.2537 -22.1424 -12.4294 2450 -2.4652 -24.5837 -10.4702 2500 -1.86120 -29.5214 -9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

Guangdong Asia Hongke Test Technology Limited Report No.: AITSZ24052404W1 FCC ID:2BHSU-AO-K8 Page 1 of 37 Appendix A RF Test Data for BT(BDR/EDR) (Conducted Measurement) Product Name: Electric Balance Bike Trade Mark: AOKDA Test Model: AO-K8 Environmental Conditions Temperature: 25.8°C Relative Humidity: 52.4% ATM Pressure: 101Kpa Test Engineer: Leon.yi Supervised by: Sean She Guangdong Asia Hongke Test Technology Limited Report No.: AITSZ24052404W1 FCC ID:2BHSU-AO-K8 Page 2 of 37 Contents Page COVER PAGE 1 Duty Cycle....................................................................................................................................................................................... 3 1.1 Test Result .......................................................................................................................................................................... 3 1.2 Test Graphs ......................................................................................................................................................................... 4 2 Maximum Conducted Peak Output Power ....................................................................................................................................... 7 2.1 Test Result .......................................................................................................................................................................... 7 2.2 Test Graphs ......................................................................................................................................................................... 8 3 20dB Bandwidth ............................................................................................................................................................................ 11 3.1 Test Result ........................................................................................................................................................................ 11 3.2 Test Graphs ....................................................................................................................................................................... 12 4 Carrier Frequency Separation ....................................................................................................................................................... 15 4.1 Test Result ........................................................................................................................................................................ 15 4.2 Test Graphs ....................................................................................................................................................................... 16 5 Hopping Channel Number ............................................................................................................................................................. 17 5.1 Test Result ........................................................................................................................................................................ 17 5.2 Test Graphs ....................................................................................................................................................................... 18 6 Dwell Time .................................................................................................................................................................................... 19 6.1 Test Result ........................................................................................................................................................................ 19 6.2 Test Graphs ....................................................................................................................................................................... 20 7 RF Conducted Spurious Emissions ............................................................................................................................................... 22 7.1 Test Result ........................................................................................................................................................................ 22 7.2 Test Graphs ....................................................................................................................................................................... 23 8 Band-edge for RF Conducted Emissions ....................................................................................................................................... 29 8.1 Test Result ........................................................................................................................................................................ 29 8.2 Test Graphs ....................................................................................................................................................................... 30 Guangdong Asia Hongke Test Technology Limited Report No.: AITSZ24052404W1 FCC ID:2BHSU-AO-K8 Page 3 of 37 1 Duty Cycle 1.1 Test Result Mode Frequency (MHz) Duty Cycle (%) 1/T (kHz) Factor (dB) 1-DH1 2402 31.2 2.63 5.06 1-DH1 2441 31.21 2.63 5.06 1-DH1 2480 31.43 2.63 5.03 2-DH1 2402 32 2.56 4.95 2-DH1 2441 32.04 2.56 4.94 2-DH1 2480 32 2.56 4.95 Guangdong Asia Hongke Test Technology Limited Report No.: AITSZ24052404W1 FCC ID:2BHSU-AO-K8 Page 4 of 37 1.2 Test Graphs Test Graphs 1-DH1 2402MHz 1-DH1 2441MHz Guangdong Asia Hongke Test Technology Limited Report No.: AITSZ24052404W1 FCC ID:2BHSU-AO-K8 Page 5 of 37 1-DH1 2480MHz 2-DH1 2402MHz Guangdong Asia Hongke Test Technology Limited Report No.: AITSZ24052404W1 FCC ID:2BHSU-AO-K8 Page 6 of 37 2-DH1 2441MHz 2-DH1 2480MHz Guangdong Asia Hongke Test Technology Limited Report No.: AITSZ24052404W1 FCC ID:2BHSU-AO-K8 Page 7 of 37 2 Maximum Conducted Peak Output Power 2.1 Test Result Mode Channel. Maximum Peak Output Power [dBm] Limit …

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Page 1 of 2 FCC ID: 2BHSU-AO-K8 Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. Test Setup Photo DSS Radiated Emission Page 2 of 2 FCC ID: 2BHSU-AO-K8 Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. Conducted Emissions ------End------