Eztronics Corp&reg; FS-GT2B 2.4G 3CH Radio Model Remote Control Transmitter &Receiver for RC Car Channels: 3 Model Type: Car/Boat RF Range: 2.4055-2.475GHz RF power: &lt;20dBm RF Channel: 140 Bandwidth: 500KHz 2.4GHz system: AFHDS Modulation Type: GFSK Stick Resolution: 1024 Low Voltage Warning: &lt;3.5V DSC Port: Micro-USB PPM Steering Range: 90 L:45 R: 45 Throttle Range: 35 F: 22.5 B: 12.5 Chargeable: Yes (USB) Antenna Length: 26mm Weight: 262g Power: 3.7V Display: LED indicators