This highly versatile, completely wireless digital doorbell kit can be fitted in just minutes, without the need for any wiring work or expensive electricians bills. Complete with two chimes & one bell push, simply attach the bell push to your door & then place the chimes anywhere around your home to make sure you never miss the doorbell again. Completely wireless you can even move the chime from room to room. The bell push can be stationed up to 100m from the receivers & its signal even transmits through walls & ceilings. Each receiver is powered by 3 x AA batteries (not supplied) & measures H12cm x W12cm x D4cm. The weatherresistant bell push measures H9cm x W4cm x D2cm & is powered using one long life 12V battery (supplied).