Review on AVANTEK CB-21 Mini Waterproof Wireless Doorbell With 1000+ Feet Range, 2 Unique Remote Tones, 52 Melodies, CD-Quality Sound, And LED Flash by Rich Ferguson

I rely quite a bit on customer reviews and this looked like a great deal and it still was, it's working but I do want to mention two things, the instructions tell you to 'peel off the insulating film on the button cell' (Battery). The film has a tang attached to it which I"m sure was meant to pull the insulator out from under the battery. I pulled several times on both button assemblies, the insulator would not come out. I had to remove the batteries and then separate the insulating film. It was not easy to get the batteries out, you need a small screwdriver and push it out of the holding clips. The second thing I want to mention are the clips that hold the button half of the unit to the rest of the assembly, once it is mounted. The clips are really thin and bend very easily, I bent one of them and straightened it but because it's light plastic, it lost the ability to snap the cover on. The rest of the clips worked but the cover is slight loose.