Features Power Supply 2 x AAA batteries Not included This product adopts the techniques of fast code locating it can copy the codes functions from your original IR remote controlsIt provides 3 devices 126 keys for learning you can choose to learn the functional keys optionally for your home devicesIts the best choice in usage for multiple appliances with permanent memory after simply learning setting upApplication TV SAT DVD VCD CD HIFI CBL STR T and other infrared devicesPackage Included 1 x CHUNGHOP L336 Learning Remote Control1 x Setup Guide