EXPERT DOG TRAINING CONTROL – Our E-Collar is used by Expert Trainers and First-time pet owners. With 0-100 levels of Vibration, Static, and Standard Beep training modes, we promise you can find a quick solution to help correct your dog’s behavior problems! | FREEDOM TO ROAM – Have wireless control of your pet up to 330 yards. Easily train your dog in the backyard or in the park! With a long battery life, you are ensured to effectively train your dog! | ADJUSTABLE FOR ALL SIZE DOGS – Adjustable Training Collar ranging from 14-25 inches. We guarantee that it will fit your small, medium, or large size dogs! | WATERPROOF – Petrainer's E-Collar is 100% waterproof, so your pet can always enjoy the water! | WATERPROOF – Petrainer's E-Collar is 100% waterproof, so your pet can always enjoy the water! | RECHARGEABLE– Save time by charging your Rechargeable Receiver and Transmitter simultaneously!