DogWatch BigLeash V-10 Vibration Dog Training Collar &ndash; Safe and Effective E-Collar with Two-Way Communication up to &frac12; Mile, 10 Adjustable Vibration Levels Plus an Audible Signal, Waterproof, Recharge Two-way Communication ( mile range) so you know how fa10 adjustable vibration levels plus an audible signalr away your dog is 10 adjustable vibration levels plus an audible signal LCD display shows battery status, vibration level and dogs distance from the transmitter Bright LED nightlights on the receiver turn on-off from the handheld transmitter Long-lasting rechargeable battery in both the handheld transmitter and receiver collar