1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your WELLYE multi-function control switch for kid's electric cars. Designed to enhance the driving experience, these control units integrate features such as Bluetooth music, power monitoring, and various driving controls. Please read this manual thoroughly before use to ensure safe and optimal performance.
2. Safety Information
⚠ WARNING: This product can expose you to chemicals including phthalates (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
- Always ensure the electric car's power is off before installing or replacing the control switch.
- Professional installation is recommended for electrical components.
- Keep the control unit dry and away from moisture to prevent electrical hazards.
- Do not attempt to modify the internal circuitry of the control switch.
- Ensure all connections are secure and correctly polarized to avoid damage to the unit or the electric car.
3. Product Overview
The WELLYE multi-function control switches come in various designs and configurations, each offering a unique set of features tailored for different kid's electric car models. Common features include power monitoring, USB and MP3 inputs, FM radio, Bluetooth connectivity, and various driving controls.




3.1 Key Features and Variations
- Power Monitoring: Many models include a battery level indicator (e.g., LED lights or digital display) to show the remaining power.
- Audio Functions: USB port for MP3 playback, FM radio, and Bluetooth connectivity for streaming music from external devices.
- Driving Controls: Buttons for Start/Stop, Forward/Back, High/Low Speed, and sometimes specialized functions like 'Rabbit/Tortoise' for speed modes or 'Sport' mode.
- Lighting Controls: Dedicated buttons for controlling the car's lights.
- Horn/Music: Separate buttons for horn sound and music playback.
- Voltage Compatibility: Available in 12V and 24V versions, ensure you select the correct voltage for your electric car.


4. Specifications
| Attribute | Value |
|---|---|
| Model Number | 12V / 24V (Specific models: S2588, S9088, S303, S306, NEL903) |
| Material | Plastic |
| Origin | Mainland China |
| Recommended Age | 3-6Y, 6-12Y, 14+y |
| Use | Vehicles & Remote Control Toys |
| Is Electric | No Battery |
| Is it battery/power supply | N |
| Is it charger/adapter | N |
| Is Batteries Included | No |
| High-concerned chemical | None |
5. Installation and Setup
Installation of the control switch typically involves replacing an existing unit or integrating it into a new electric car build. The process requires careful attention to wiring and connector types.
5.1 General Installation Steps
- Disconnect Power: Ensure the electric car's battery is completely disconnected before starting any installation.
- Access Control Panel Area: Locate the area where the control switch is to be installed, usually on the dashboard or central console of the electric car.
- Identify Connectors: Observe the existing wiring and connectors. The control switches typically use multi-pin connectors (e.g., 4-pin, 8-pin) for power, motor control, and accessory functions. Refer to the images below for common connector types.
- Match Voltage: Confirm that the new control switch's voltage (12V or 24V) matches your electric car's system.
- Connect Wiring: Carefully connect the corresponding wires from the electric car to the new control switch. Ensure correct polarity for power connections. Mismatched wiring can cause damage.
- Secure the Unit: Once all connections are made, secure the control switch in its designated slot.
- Reconnect Power: Reconnect the battery and test all functions of the control switch.



6. Operating Instructions
The specific functions may vary slightly between models, but the core operations are generally consistent.
6.1 Basic Controls
- Power Button: Press to turn the unit on/off.
- Start/Stop Button: Initiates or halts the electric car's movement.
- Forward/Back Buttons: Controls the direction of travel. Some models may use 'Rabbit' for fast speed and 'Tortoise' for slow speed.
- Speed Selection: Buttons labeled 'High Speed' / 'Low Speed' or similar icons allow switching between different driving speeds.
- Music/Volume: Buttons for playing music, skipping tracks (V-/V+), and adjusting volume.
- FM Radio: Activates the FM radio function. Use V-/V+ to change stations.
- Bluetooth (B))): Activates Bluetooth mode for pairing with a mobile device.
- USB/MP3: Insert a USB drive with MP3 files for playback.
- Light Button: Toggles the car's lights on/off.
- Horn Button: Activates the car's horn sound.
6.2 Power Monitor
The integrated power monitor displays the current battery level, typically through a series of LED lights or a digital screen. Monitor this to ensure sufficient charge for operation.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the control panel. Avoid using harsh chemicals or abrasive materials.
- Storage: If the electric car is not in use for an extended period, disconnect the battery and store the control unit in a dry, cool place.
- Inspection: Periodically check all wiring connections for looseness or corrosion.
8. Troubleshooting
8.1 Common Issues and Solutions
| Problem | Possible Cause | Solution |
|---|---|---|
| Control unit does not power on | Disconnected power, low battery, incorrect wiring | Check battery connection and charge level. Verify all power wires are correctly connected. |
| Car does not move | Motor wiring issue, speed setting, safety lock engaged | Ensure motor wires are secure. Check speed mode. Consult car's manual for safety locks. |
| No sound from speakers | Speaker wiring, volume too low, no audio source | Check speaker connections. Increase volume. Ensure USB/Bluetooth source is active. |
| Bluetooth not pairing | Unit not in pairing mode, device too far, interference | Ensure Bluetooth mode is active. Keep devices close. Restart both devices. |
9. User Tips
- To maximize playtime, ensure the electric car's battery is fully charged before each use.
- Experiment with different speed settings (e.g., 'Rabbit' for faster, 'Tortoise' for slower) to suit the child's age and skill level.
- Utilize the Bluetooth music feature to play your child's favorite songs, enhancing their overall entertainment during playtime.
- Regularly check the power monitor to avoid unexpected power loss during use.
10. Warranty and Support
For warranty claims or technical support, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.
11. Statement of Compliance
This product complies with relevant safety and environmental standards. For specific compliance details, please refer to the product packaging or contact the manufacturer.





