Doorbells are a device usually situated at the doors of places of residence. They have been in use for years. In most modern homes, you will find wired doorbells being used. These are the most common types of doorbells available. There is a button at the door that when pressed, activates a signaling device inside the residence. You can also find mechanical bells however, they are not as common anymore. A new type of doorbell coming up is the wireless doorbell. It does not require any wiring through the walls to reach the signaling device, instead, it has a transmitter send a radio signal to the device. If you’d like to view our collection of doorbells, go to eWorldTrade.com where you can find doorbells of many different types so you can choose freely.