Program the basic commands, which are regularly used and then store your original remote away. Will learn the local commands like Power, Channel UP-DOWN, Volume UP-DOWN, AV or MUTE. Simple to use. Also ideal for Hotels and Motels. Use the master remote to program as many remotes to give clients as required. Replaces any IR-remote control, programmable with the original remote control. Keeps settings during battery change. Requires 2x AAA Batteries ( Not Included).