The Liztek wireless doorbell is your best choice in todays marketplace when you need to replace that old broken doorbell. The hassle free Liztek wireless doorbell ranges up to 1000 feet (300 M), ensuring that you will never miss a visitor again! Just plug it in and you are ready to go. With 4 levels of volume you can choose the level that works best for you. Enjoy choosing from the 52 different chime options.