wireless remote control used in garage gate,slide door, roller curtain, ... controlOperating voltageDC12V,(27A battery) Operating Current 8~15mA Operating Frequency315MHZ/ 433MHZ(SAW),Customized frequency is available. Modulation Mode ASK Effective Distance ... curtain control, door locks, remote sensing, telemetry, industrial control and wireless security alarm industries. 2 buttons ...