There are so many types of doorbells to choose from when you are looking to install a doorbell. The most common type of doorbell is Ding Dong Bell. It is the easiest of doorbells to install & doesn't require to be programmed. The best part is, it does not require any wire and No need to hire an electrician. Water-proof bionic button, this Ding Dong Bell is Easy installation and plug in socket and work normally. We are providing 5 models, the work bells work on 230V AC. For long life and durability, we use fine gauge and enameled copper wire.