Introduction
Thank you for purchasing the NKOK 1/28 Scale 2.4GHz RC Sonic & Silver 2-Pack. This manual provides essential information for the safe and optimal operation of your new remote control vehicles. These highly detailed, officially licensed replicas feature full-function radio control, powerful 2.4 GHz frequency for multi-player racing, and agile performance with grippy tires and adjustable front wheel alignment.

Image: The NKOK 1/28 Scale 2.4GHz RC Sonic and Silver 2-Pack, shown in its retail packaging.
What's in the Box
- 1 x Sonic RC Vehicle
- 1 x Silver RC Vehicle
- 2 x Remote Controllers (one for Sonic, one for Silver)

Image: The Sonic and Silver remote control vehicles, each accompanied by its respective controller.
Setup
Battery Installation
- Vehicles: Each RC vehicle requires 4 AA batteries (not included). Locate the battery compartment on the underside of the vehicle, open it, insert the batteries according to the polarity indicators, and securely close the compartment.
- Controllers: Each remote controller requires 3 AAA batteries (not included). Locate the battery compartment on the back of the controller, open it, insert the batteries according to the polarity indicators, and securely close the compartment.
Power On and Pairing
- Turn on both the RC vehicle and its corresponding remote controller using the ON/OFF switches.
- The 2.4 GHz frequency system automatically pairs the vehicle with its controller. No manual pairing steps are typically required.
Operating Instructions
Basic Controls
- Forward/Backward: Use the left joystick or button on the controller to move the vehicle forward or backward.
- Left/Right: Use the right joystick or button to steer the vehicle left or right.
Special Features
- Turbo Boost: Press the designated 'BOOST' button on the controller for an extra burst of speed.
- Working Lights: The vehicles are equipped with working headlights and tail lights for enhanced realism during play.
- Multi-Player Racing: The 2.4 GHz frequency allows up to 16 players to race simultaneously without interference, with a range of up to 150 feet.
- Adjustable Front Wheel Alignment: For optimal control and straight driving, the front wheel alignment can be adjusted if needed.

Image: A child is shown operating the Silver RC car using its remote control on a race track.
Official Product Video: Sonic SCR R/C with Turbo
Video: This video showcases the Sonic RC car in action, highlighting its turbo boost feature and overall performance.
Maintenance
- Cleaning: Wipe the vehicles and controllers with a soft, dry cloth. Do not use water or cleaning agents.
- Storage: Store the vehicles and controllers in a cool, dry place away from direct sunlight when not in use. Remove batteries if storing for extended periods.
- Battery Care: Always use fresh batteries. Do not mix old and new batteries or different types of batteries.
Troubleshooting
- Vehicle not responding: Ensure both the vehicle and controller are turned ON and have fresh batteries installed correctly. Check for any obstructions to the wheels.
- Poor range or interference: Ensure you are within the 150-foot operating range. Avoid areas with strong electromagnetic interference.
- Vehicle pulls to one side: Adjust the front wheel alignment mechanism located on the underside of the vehicle until it drives straight.
- Lights not working: Check battery levels. If the vehicle is moving but lights are off, ensure the light feature is not accidentally switched off (if applicable).
Specifications
| Feature | Detail |
|---|---|
| Brand Name | NKOK |
| Model Name | 1/28 Scale 2.4GHz RC Sonic 2PK RC Sonic & Silver |
| Model Number | 688 |
| Scale | 1:28 |
| Vehicle Dimensions (Sonic) | 6.5 x 3.63 x 3.25 inches |
| Vehicle Dimensions (Silver) | 6.5 x 3.5 x 3.5 inches |
| Power Source | Battery Powered (Alkaline) |
| Batteries Required (Vehicles) | 4 AA (not included) per vehicle |
| Batteries Required (Controllers) | 3 AAA (not included) per controller |
| Frequency | 2.4 GHz |
| Range | Up to 150 feet |
| Max Players | 16 |
| Material Type | Plastic |
Vehicle Dimensions

Image: Silver RC car with dimensions: 6.5 inches long, 3.5 inches wide, 3.5 inches high.

Image: Sonic RC car with dimensions: 6.5 inches long, 3.63 inches wide, 3.25 inches high.
Warranty and Support
For any product inquiries, technical support, or warranty information, please contact NKOK customer service. Refer to the product packaging for specific warranty details or visit the official NKOK website.
Contact Information: Please refer to the contact details provided on the product packaging or the official NKOK website for the most up-to-date support information.