Very popular and first used by experienced trainers and pet owners. It can be used to help correct barking, leash walking, sitting, aggression, and any other behavioral obedience. 800 meters range - The remote training collar uses the RF434Mhz frequency To provide a range of up to 800 meters, Easily train your dog in the park or yard. 100% Waterproof Receiver - Also works when submerged in water, allowing your dog to swim or bathe freely with the collar. The rechargeable remote control and receiver can be charged at the same time so that your equipment is always ready for use. Dog training collar with setting levels from 0 to 99 for electrical stimulation, vibration, brightness and sound. Suitable for all dogs. Durable and adjustable TPU collar (16 to 62 cm) able to adapt to small and medium-sized dogs. The remote control and the receiver of the collar have a great autonomy (from 1 to 2 hours of charging give you 7 to 14 days of use) with lithium-ion batteries. Plus, the automatic