1. Frequency range: 433MHZ 2. Wireless transmission distance: 50-100m 3. Working voltage: DC3V (a built-in 2032 battery) 4. Working current: 10mA@3V 5. Radiation power: 10mW@3V 6. Encoder type: fixed code, learning code, partial rolling code 7. Mainly used for remote control of some cars. Remote control electric retractable doors, lifts, remote