The WFPC877 75m plug-in twin pack chime kit is an ideal wirefree door chime solution as the discrete white chimes can be placed anywhere in your home up to 75m from where the bell push is located. There are three chime tunes to choose from: Westminster, Ding Dong or Ding. Batteries are supplied for the push along with a self adhesive pad for mounting the push to your door frame. Alternatively, you can secure the push to your door frame using the screws supplied. There are 16 house code channel options to choose from as well to avoid interference from neighbours’ chimes. The chime is small and compact and has a sound level output of 70dB.