Dogwidgets DW-5 Rechargeable 2 Dog Training Shock Collar with Individual Vibration For Each Dog Rechargeable collars. Will work with dogs from 15 to 100 lbs. 600 feet range remote Correct your dog individually with a shock and vibration or correct 2 dogs at the same time with a vibration Water-resistant collars(Not water-proof/Not submersible) 6 months warranty from DogWidgets