Spend less time training and more time enjoying your dog. At the push of a button, the remote sends a signal, activating your dog's receiver collar from up to 400 yards away. The collar delivers a safe, gentle static correction. Your dog will quickly learn the association between his behavior and the correction. The Elite Little Dog Remote Trainer is a reliable, versatile, easy-to-use tool to help you train your dog off-leash. Features For dogs up to 55 pounds Fits neck sizes 6-22 inches Range up to 400 yards 15 adjustable levels of static correction plus instant +2 Boost button Tone-only mode alerts your pet with a beep Train 2 dogs with extra collar Waterproof collar submersible up to 5 feet Collar and remote use included rechargeable batteries (built-in; non-replaceable) Part Numbers: RFA-476 System Includes Receiver and Adjustable Collar Digital Remote Transmitter Charging Adapter Test Light Tool Wrist Strap Operating and Training Guide