Gate Keypad Hard wire or wireless Keypad Linear Multicode compatible 300MHz GTO Mighty Mule 318MHz Compatible Wireless Keypad: 300 MHz (Compatible with Multicode 10-dip switch) 318 MHz 9-dip switch (Compatible with Allstar 9931 and Heddolf P220 Stainless steel faceplate, Rubber back lit keys Hard wired or wireless, Holds up to 99 individual 4-digit codes Operating Voltage: 9-24VDC (battery or powered) -500mA