Digicode DC5030 300Mhz Garage Door Remote Features Multicode compatible 3-channel remote control transmitter. 10 dip switches,1 set programs single button for 1,024 possible code combinations, 2 sets programs dual buttons for 512 possible code combinations. This one convenient transmitter allows control of 3 separate operations, garage door openers or gate operators. This is ideal for community gates with individual garages. Designed to be fully compatible with all of the DigiCode receivers as well as existing Multicode receivers, simply set the dip switches to match your receivers. Includes heavy duty Eveready 9 Volt battery and built-in LED light to indicate battery strength. 3 sets of coding switches, one for each door or gate. Dimensions are 3 3/4""x2 1/2""x7/8"" Full manufacturer warranty, Made in the USA Battery, visor clip, and coding instructions included