SportDog Field Trainer for Stubborn Dogs

Features: For larger or stubborn dogs. Very small transmitter and collar receiver. Push-button on/off switch activated at the collar. Customizable transmitter settings - choose from 7 pre-set modes. 1/4-mile range gives ample training range for closer working breeds. Up to 16 levels of continuous stimulation and 8 levels of momentary stimulation. Rechargeable, user replaceable NiMH batteries in collar and transmitter. Instantly change stimulation intensity from the transmitter tactile dial. Low battery detect indicators on both transmitter and receiver. Waterproof/submersible collar and transmitter. No external collar antenna to get hung up. Upgradeable to 2 or 3 dogs. Lifetime Limited Warranty. Tone only button option.