Safety Technology International Wireless Door Bell Chime with Receiver

STI Wireless Door Bell Chimes announce your visitors with a pleasant chime. Mount the wireless button next to your door, plug the receiver into any 120 VAC indoor electrical outlet and the chime is ready to operate. Plays 10 sound options: Ding, Dong, Ding-Dong, Westminster 4 Note, Westminster 2 Note, Knock Knock, Jingle Bells, Barking Dog, Bicycle Bell, Buzzer. Transmitters have up to 500 ft. operating range.