Review on KOSPET Rechargeable Dog Training Collar - Remote Control, Beep,Vibration, Shock - 3 Training Modes, 1644Ft/548 Yard Range - Waterproof Anti Barking Collar for Dogs - Small, Medium, Large Breeds by Rachael Young

The collar works, but I have problems with it. First, the collar itself is very hard and quite difficult to handle. I thought it would eventually fit my dog's neck but it doesn't. Second, you need to be careful where your fingers are on the panel. The buttons are all in a row, there isn't much space between them, and a couple of times I wanted to hum my pup and actually got a shock. In general, it just takes a little getting used to. TO UPDATE. This collar is junk. I've tried and tried to give him a chance but I'm not impressed. Think twice before buying this collar as Revain has many other options.