Say goodbye to changing doorbell batteries with this wireless Kinetic home doorbell. When you push down on the doorbell push button, it creates a mechanical force and uses this as a kinetic micro-energy to produce a low-power signal. As its wireless, theres no cabling required making it easy to install. The doorbell transmitter comes with a double sided adhesive that allows you to easily stick to most surfaces. The transmitter is also IP44 rated making it suitable for outdoor conditions. Users can select their ideal ringtone for the 58 tones available. The receiver features a LED flashing light when doorbell has been rung and can be placed within a 150m open space range of transmitter. Features Easy to install Kinetic Wireless 150m Operating Range: 150m in open air 58 melodies available 4-Level Volume Control Receiver has a flashing LED Indicator IP44 Waterproof Push Button Music IC with memory function, ringtones and volume keep same when powered off
