Plug a lamp into the back of the KA1000 remote receiver for notification of the telephone, doorbell, fire alarm, smoke alarm and other audible alarms. It receives signals from the Krown KA300 and Krown KA1000 transmitters, up to a 300 foot radius. Simply connect the lamp to the transmitter and turn the lamp on, then program the receiver for up to 16 different transmitters. 16 different signal methods. One year warranty.