The SportDog SD-2000 WetlandHunter Dog Training Collar is designed for the Waterfowl hunting environment. It features both waterproof and submersible transmitter and receiver, a Realtree™ Max4 Camo finish and a high output receiver collar. It has advanced features that make it the electronic dog training collar of choice for serious waterfoul hunters. The SD-2000 dog training shock collar has a ¾ mile range, 16 levels of constant and momentary correction, a tone only button, and a tone then stimulation option. Unlike many collars, it comes with replaceable and rechargeable NiMH batteries for both the transmitter and receiver. The batteries have a long 40 – 80 hour life so you don’t have to worry about your batteries dying when you need them most. The SportDog SD-2000 SportHunter Dog Training Collar is must have dog training equipment for the serious waterfoul hunter. SD-2000 WetlandHunter Dog Training Collar Features: 3/4 Mile Range High output receiver collar 2 Dog system (1 dog system available) Receiver and Transmitter are waterproof and submersible Up to 16 levels of continuous and momentary (nick) correction Tone only button Tone only for 1 sec, then stimulation, option. Replaceable Rechargable NiMH Batteries in both transmitter and receiver Low battery indicators in both transmitter and receiver 40-80 hours ‘on time’ between charges Lanyard Belt Clip Lifetime Limited Warranty