Specifications: Specially developed for remote control cars and boats. It supports multi-device and multi-user simultaneously with fast response speed and strong anti-interference ability. Very low power consumption and high receiving sensitivity. Let beginners can control the car or boats within limited speed range. Type: Remote Transmitter for RC Channels: 3CH Frequency: 2.4GHz Power: 4.0V - 6.5V DC Power Supply: 4 x AAA Batteries (Not Included) Features: Digital, Remote Control, Professional Transmitter Size: 13.7cm x 16.2cm x 68.6cm/5.39" x 6.38" x 27.01" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Transmitter 1 x Receiver 1 x User Manual