Description: Performance Accessories: Upgrade your car to effectively improve the performance of your car. Replacement Parts: Replace old, broken or non working ones with long life and good working performance. Reliable Set: Easy to use, stable performance, stable and reliable. Functions: With speed limit function, anti runaway, waterproof receiver, low pressure alarm. Applicable: Cars, Boats, Tanks, RC models. Specification: Material: Plastic Channels: 3 channels Remote control frequency: 2.4GHz Remote control distance: 150 meters RF range: less than 20dbm Low Voltage Warning: Yes (less than 4.4V) Power supply: 4x 1.5V AA battery (not included) Remote control size: 16cmx10cmx20cm/6.30inchx3.94inchx7.87inch Receiver size: 3.2cmx2cmx1.2cm/1.26inchx0.79inchx0.47inch Weight: 242g Package Includes: 1 Piece Transmitter 1 Piece Receiver Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!