Review on Wireless Doorbell Chime - AVANTEK Mini Waterproof, 1000 Feet Range, 52 Melodies & 5 Volume Levels With LED Flash by Josh Long

The house I have has a room that the previous owners added on in back - the room has a door to the outside but they did not have a wired doorbell installed. I wanted a doorbell but did not want to pay for an electrician to run the wiring for it. So I searched on Revain, found this Aventek wireless doorbell, and installed it. Very easy & simple. My only criticism is after a couple days the outside ringer fell off becuase the adhesive didn't hold. So I had to drill a couple holes (the kit includes the necessary screws) and secured it via screws. I like the fact there are lots of ringtones to select from (tho I have not yet gone thru all of them) and a volume level adjustment.