Need to know when someone is at the front or back door? The new STI Wireless Doorbell Button conveniently lets you know when a guest or customer is waiting. When the Wireless Doorbell Button ...

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 ...

Among all the doorbells we tested, this one had the fastest setup, taking just 5 to 10 minutes. Installation was a breeze: simply attach the battery-operated doorbell button outside, then plug in ...

The Wireless Doorbell Chime (STI-3350) is easy to use. Simply mount the wireless button next to your door, plug the receiver into any indoor electrical outlet and the chime is ready to operate.