STI's Wireless Doorbell Button with 4-Channel Voice Receiver.
Photo credit: (Photo courtesy STI)
STI's Wireless Doorbell Button with 4-Channel Voice Receiver conveniently lets you know when a guest or customer is waiting. When the doorbell button is activated, it sends a wireless radio signal to the voice receiver. The receiver sounds a programmable voice message; select from ten tones/tunes, 53 selectable words (speaks up to 4 words for each transmitter). 500-foot range (line of sight) and supervised for low battery and connection.