CONTROL 2 DOGS AT ONCE - This dog training collar with remote control has a range of up to 800 meters. Control up to 2 collars to train dogs of all sizes. You can control 2 dogs at the same time with one button without looking at the remote. Makes it easy to train your dog in the park or yard. 800m Range - The remote training collar provides a range of up to 800m using the RF434Mhz frequency, making it easier training your dog in the park or yard. 100% WATERPROOF RECEIVER - Works well even when submerged in water, allowing your dog to swim or bathe freely with it necklace. The rechargeable remote and receiver can be charged at the same time, keeping your gear ready to go. The collar remote and receiver use lithium-ion batteries for long battery life battery (1-2 hours of charge time will give you 7-14 days of use). Plus, automatic power-saving modes help extend battery life when not in use. Dog training collar with 0-99 adjustable levels for stimulation electricity, vibration, light