[FunTrainer] Dog Shock Collar with Remote for 3 DogsWhy My Dog Needs This Shock Collar? Whether you want to correct excessive barking or aggressive leash pulling, or you just want to add security to off leash walking, FunniPets Remote Dog Shock Collars helps you to control your fur friend from up to 875 yards away. It offers 3 training modes including shock, vibration, and tone, with 1 99 adjustable levels of vibration and shock, so you can fine tune the correction level to achieve positive results