The Dogtra 2300NCP Advanced 3/4 Mile Remote Trainer is a multipurpose e-collar, designed for advanced level pet training, competition training, Police K-9 work or any type of hunting where a 3/4-mile range is needed. It also features 2-hour rapid charge batteries, fully waterproof Receiver and Transmitter.The 2300NCP with an LCD screen is a true multipurpose training collar for mild mannered or stubborn dogs. It has a fully waterproof transmitter and receiver that is designed for advanced levels of pet training. This extremely compact unit is the absolute best collar for field dogs that are often in rugged terrain and the toughest conditions.This collar maintains a strong signal up to a 3/4 mile range even in thick brush. With an LCD Display, your handheld transmitter will work perfectly in low light situations in dusk or dawn. This shock collar is designed to transform your pet into the next generation gun dog quickly and efficiently.