Transmitter Specifications: Channels: 2 Advanced 2.4GHz System Antenna Length: 25mm Power: 6V DC 4x AA Batteries Display Mode: LED indicator Size: 208 x 122 x 80mm / 8.18 x 4.80 x 3.15in Weight: 6.52oz / 185.0g
ESC/Receiver Specifications: Channels: 2 Type: 2.4GHz RX with Crawler ESC Servo Port: Standard 3 Pin Servo Port BEC For Servo: 5V, 1A Battery: 7.2V NiMH or 2S LiPo, JST connector Size: 36 x 26 x 14mm / 1.41 x 1.02 x 0.55in Weight: 0.29oz / 8.3g
Shown installed on RC4WD 1/18 Gelande II RTR Chassis for example (Not Included)