Superior transmission range Long battery life Compatible with all 200 Series receivers 2-button model Essential Info The 200-Series Handheld Remotes are multi-purpose handheld transmitters, designed for emergency signaling, and the remote control of electronic devices. Each transmitter sends a specially coded digital signal on 315MHz to a 200-Series receiver. This 2 button model is powered by a standard 9-volt battery (sold separately) and include a belt clip. Manuals/Software 2-Button Transmitter Manual (247KB) What's Included 200 Series 2-Button Transmitter WT102