Review on 🐶 GROOVYPETS 650 Yard Remote Dog Training Shock Collar with Safe Humane Beep, Vibration, Static Shock | Waterproof & Rechargeable Battery | for Small, Medium, Large Dogs by Heather Artis

I love these collars! Our large dogs respond very well to the sound signal, they didn't need to be shocked at all. We leave them on all day without tightening them because they don't need to be shocked. The battery life is amazing and the remote control is very easy to use. I love that you can do each dog individually or both at the same time. I've always bought expensive sporting dog collars, but I like these more. As an aside, I just swapped mine out for a new set because one of the collars stopped working in less than a month. I hope this is just an accident.