The Draper 121251 Lift IR Kit is a package consisting of a receiver and hand-held transmitter which control a Lift Low Voltage Control via infrared. Its range with fresh batteries is approx. 50 feet. The 1-channel transmitter is approx. 2" wide, 63/8" long, and 1" thick. Operates on two AAA batteries (included). The receiver is approx. 1 1/4" x 2" x 3/4", with a 10' long data cable, which plugs into a standard RJ-11 plug on the Lift Low Voltage Control. It must be located within sight of the transmitter user.