With a separate receiver and wireless kinetic push button that can deliver a strong signal up to 30m, never miss a customer or visitor with this battery-free and total wireless doorbell. Customisable chimes & volume With up to 38 chimes to choose from, you will be sure to find one that suits your personal taste. Baby asleep inside? No problem! Just turn the volume of the chimer down and let the LED light alert you when somebody is at the door. Key Features DIY installation - No electrician required A compact door chime system that’s completely wireless. Easy wireless installation, receiver unit plugs into mains power. Doorbell runs from kinetic energy with no batteries required & up to 30m range.