1. Introduction
Thank you for choosing the YEMIAI Remote Control Stunt Car. This 4WD off-road vehicle is designed for thrilling stunts, including 360° spins, drifting, horizontal walking, and upright walking. Equipped with a 2.4 GHz remote control, it allows for multiple users to operate simultaneously without interference. Its durable design and powerful motor ensure an exciting and stable experience across various terrains.
This manual provides essential information for setting up, operating, maintaining, and troubleshooting your stunt car to ensure optimal performance and longevity.
2. Safety Information
For external use only. Avoid contact with eyes. Keep away from naked flame or direct heat sources.
- Always supervise children during operation.
- Do not operate near people, pets, or fragile objects.
- Ensure batteries are installed correctly with the correct polarity.
- Do not mix old and new batteries, or different types of batteries.
- Remove batteries from the car and remote control when not in use for extended periods.
- Do not attempt to modify or disassemble the product.
3. What's in the Box
- Remote Control Stunt Car
- Remote Control
- Battery (1 Lithium Ion battery included)
- Charging Cable
- Screwdriver
- Product Manual (this document)
4. Setup
4.1 Battery Installation
The stunt car requires one Lithium Ion battery, which is included. The remote control may require separate batteries (not specified, typically AA or AAA, check remote for markings).
- For the Stunt Car: Use the included screwdriver to open the battery compartment located on the underside of the car. Insert the Lithium Ion battery, ensuring correct polarity. Close the compartment and secure with the screw.
- For the Remote Control: Open the battery compartment on the back of the remote control. Insert the required batteries (e.g., 2x AA batteries, not included), observing the correct polarity (+/-). Close the compartment.

Figure 4.1: Illustration of battery installation and charging methods for the stunt car. The image displays steps for inserting the battery into the car's compartment and various ways to charge the battery using the provided USB cable, including connecting to a wall adapter, laptop, or power bank.
4.2 Charging the Car Battery
Use the provided charging cable to charge the stunt car's Lithium Ion battery.
- Connect the charging cable to the battery.
- Plug the USB end of the charging cable into a USB power source (e.g., computer USB port, USB wall adapter, power bank).
- The charging indicator light will show the charging status (refer to the charging cable's specific instructions if available).
- Once fully charged, disconnect the battery from the charging cable and the power source.
5. Operating Instructions
5.1 Remote Control Functions
Familiarize yourself with the remote control layout and functions:

Figure 5.1: Detailed diagram of the remote control for the YEMIAI Stunt Car. Labels indicate buttons for Auto Demo, Music Switching, Turn Off Music, Forward/Backward, Left/Right Rotation, ON/OFF switch, and Left/Right Deformation controls.
- ON/OFF Switch: Powers the remote control on or off.
- Forward/Backward: Controls the car's movement in forward and reverse directions.
- Left/Right Rotation: Controls the car's turning.
- Left/Right Deformation: Activates the car's stunt deformation modes, allowing it to change shape for different maneuvers.
- Music Switching: Toggles between different music tracks.
- Turn Off Music: Stops the music playback.
- Auto Demo: Initiates an automatic demonstration of the car's various stunts and movements.
5.2 Basic Operation
- Turn on the stunt car and the remote control.
- The car and remote will automatically pair. If pairing fails, turn both off and on again.
- Use the directional controls to drive the car forward, backward, left, and right.
5.3 Stunt Capabilities
The YEMIAI Stunt Car is capable of various impressive maneuvers:

Figure 5.2: The stunt car demonstrating its advanced movement capabilities. This includes an 'Anti-Gravity Mode' with 90° rollover driving, 'Standing Forward' movement, 'Standing Lateral Driving', and 'Lateral Rotational Drift', highlighting its versatile performance.
- 360° Rotation: Use specific controls (refer to remote diagram) to make the car spin rapidly.
- Drifting: The unique tire design allows for controlled drifts. Practice to master this technique.
- Horizontal Walking: The car can move sideways without turning its front.
- Upright Walking: The car can stand and move on its rear wheels.
- Stunt Deformation: Use the deformation buttons on the remote to change the car's configuration for different stunt modes.
5.4 Terrain Usage
The car is designed for multi-terrain use, including:

Figure 5.3: The YEMIAI Stunt Car demonstrating its versatility across different environments. The image displays the car successfully navigating mud, rocky surfaces, mountainous terrain, paved roads, and grassy areas, highlighting its robust off-road capabilities.
- Grass: Suitable for light grassy areas.
- Sand: Can operate on sandy surfaces.
- Asphalt Road: Ideal for high-speed maneuvers and drifting.
- Mud/Rock: Capable of handling uneven and challenging surfaces.
6. Maintenance
- Cleaning: After use, especially on dirty or dusty terrains, gently wipe the car with a dry or slightly damp cloth. Do not immerse the car in water.
- Storage: Store the car and remote control in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: Always remove batteries if the product will not be used for an extended period. Recharge the car battery periodically if stored for long durations to maintain battery health.
- Inspection: Regularly check for any loose parts, damaged wires, or debris caught in the wheels.
7. Troubleshooting
- Car not responding:
- Ensure both the car and remote control are powered on.
- Check if batteries in both the car and remote are fully charged or correctly installed.
- Re-pair the car and remote by turning both off and then on again.
- Ensure you are within the effective range of the remote control.
- Short operating time:
- The car battery may not be fully charged. Ensure it is charged for the recommended duration.
- Battery life can decrease over time. Consider replacing the battery if it's old.
- Car moves slowly or erratically:
- Low battery in either the car or remote control.
- Obstructions in the wheels or drivetrain. Clean any debris.
- Interference:
- While the 2.4 GHz system minimizes interference, strong radio signals or multiple RC devices in close proximity can sometimes cause issues. Move to a different location if experiencing significant interference.
8. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 9 x 7.5 x 4.5 inches |
| Item Weight | 2.05 pounds |
| Model Number | 8865B |
| Manufacturer Recommended Age | 6 years and up |
| Batteries | 1 Lithium Ion battery (included) |
| Manufacturer | YEMIAI |
9. Warranty and Support
For any questions, concerns, or support needs regarding your YEMIAI Remote Control Stunt Car, please contact the manufacturer directly. Refer to the product packaging or purchase platform for specific contact information for YEMIAI customer service.