Aetertek At-918C Submersible Remote 1 Dog Training Shock Collar with Auto Anti Bark Feature Rechargeable Collar for Dogs 600yard Rechargeable andSubmersible receiver (genuine waterproof) remote control 600 yard range,with auto sleep feature ,save battery. Adjustable 9 levels of Vibration, Warning Beep Tone, and Shock Can be used for 1 or 2 dogs (This listing only for one dog training system) Auto anti bark function ,1 year warranty