Review on PECOLE Dog Training Collar for 2 Dogs: Waterproof Rechargeable Shock Collar with Remote for Small, Medium, and Large Dogs - Electronic Dog Collars with Beep, Vibration, and Shock Modes by Jacki Beauchene

First off I have to say that it was extremely easy to operate and navigate the receiver from different dogs! The range is also very impressive. I live in the mountains with two pit bulls who love to explore nearby areas and the signal goes a long way, even through dense kudzu areas! The battery life is also very impressive, I have to constantly use the beep and vibrate functions, and I have to charge the collars maybe once every 10-15 days (on a heavy use like mine, this is very impressive). I also like that the receiver shows the battery level of each collar. I almost never have to use the shock function because when they hear a beep or feel a slight vibration they know it's time to go home!