With the press of a button on the transmitter, the Remote Spray Trainer can help you train. This collar releases a burst of lemon-scented spray towards your dog's snout to discourage bad behavior or for basic obedience training. The collar has a 300-yard range and four spray levels. Rechargeable, waterproof transmitter and receiver. Collar adjusts to fit necks up to 28". Includes one refill.