... Receiver 1.voltage:12V/24VDC 2.Frequency: 315MHz/433MHz 3.Distance:<80 12V/24VDC Wireless With 4 Channel Garage Door Remote Control ... manufactured by our company,which ouputs Switching Quantity Signal for 4 relay and control the equipment to realize turn , turn ... with high security, storage capacity, stable performance, low power consumption,easy to use, do without using the traditional jumper or DIP ...