Sonic Alert Traditional System DB100 Doorbell Transmitter with Lamp Flash

The full-featured DB100 doorbell signaler with doorbell button is wireless and installs easily. It features a chime, 64 user-selectable channels to prevent interference from a neighbor's signalers and an outlet for a lamp. The DB100 is compatible with all Sonic Alert receivers.Features: Selectable number of flashes Different flash codes for front or back door Works with most home intercom systems with separate additional doorbell button sensor (sold separately) Built in chime (can be turned off) Built in outlet to flash attached lamp 64 user-selectable channels Compatible with all Sonic Alert receivers Wireless doorbell 12V battery included What else do I need to make this work?In order to be notified in additional rooms, you will need to purchase a receiver that lets you know when the signaler or transmitter is activated