Whether you're just getting your pup collar trained or building retrieving skills, Dogtra's 280C Electronic Dog Collar is perfect for both dog and user. This fully waterproof electronic trainer has enough power – low to medium strength – to cover a 4/5 kilometre range and keep even the fastest dogs that like sprinting ahead to thick cover in line. For water dogs, replaceable contact points actually excel while wet. The downsized, checkered-grip handheld transmitter has an illuminated LCD screen. The rechargeable receiver has nick, continuous and pager-vibration modes. Nick is a momentary burst of pre-measured stimulation; constant gives electrical stimulation for as long as you hold the button down, up to eight seconds; and page causes the collar to vibrate for nonelectrical stimulation. All collars come with two-hour Quick Charge lithium polymer batteries, charger, test light and owner's manual. 127 rheostatic levels of correction are safe for dogs down to 15 lb.