Sportdog YardTrainer 100S, Built For More Stubborn & Easily Distracted Dogs By Offering Its Static Stimulations In A Higher Range, 100 Yards Of Range, Ideal For Training Around The House, Yard, Or Park, Any Situation Where Your Dog Is Within 100 Yard, Compact & Discrete System, Built With Drytek Technology, Waterproof & Submersible To 25', It's Rechargeable, 3 Stimulation Types: Tone, Vibration, 8 Levels Of Static Stimulation, Each Stimulation Type Has A Dedicated Button, Allowing You To Easily Deliver The Stimulation That Best Fits The Situation, Intuitive Design Makes Operating The Remote A Breeze.