This MT-1B Linear MegaCode Remote Transmitter is permanently coded at the factory. The remoter sends a unique code when the button is pressed. The remote is programmed by the receiver learning a remote's unique digital code. The receiver will activate only from the memorized remotes.

Linear MT-1B Info: Activates One MegaCode Receiver 318MHz, Battery, Visor Clip, Programming Instructions Included, Dimensions: 2.16" W x 3.75" H x .95" D