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

This was easy to install and fit perfectly in the tight space I had for the transmitter. Glad I got it. Has Christmas-y chimes too if you are into that for Christmas. I chose the standard doorbell sound when I set it up. Came with two receivers which I didn't realize which was a nice surprise. Also, I read a review saying the plastic cover over the battery in the transmitter was difficult to remove but the package comes with a tool for opening up the back of the transmitter for very easy removal of the plastic cover and then you just snap the back cover right back on.