Doorbell system

摘要

A doorbell system includes first and second pushbutton and an RF transmitter activatable by the first and second pushbutton. An RF receiver is configured to receive RF signals from the RF transmitter. The doorbell system further includes a microphone. A first storage device of the doorbell system stores a first sound. A second storage device is configured to record a second sound through the microphone. A playback device is operatively associated with the RF receiver and the storage devices to enable a user to select one of the sounds by pressing the first pushbutton and to play the selected one of the sounds by pressing the second pushbutton.