SportDOG SD-400S Field Trainer for Stubborn Dogs

The compact FieldTrainer SD-400S is ideal for training in the yard, field, or for hunting with dogs that hunt close. Features slightly higher voltage for larger or more stubborn dogs that need a bit stronger stimulation to respond properly to electronic corrections. Both the transmitter and receiver are waterproof and submersible. It can be expanded to control up to 3 dogs by adding SportDOG Brand Add-A-Dog e-collars. The comfortable "soft coat" transmitter finish makes this unit a pleasure to handle. Fits dogs with 7.5"-22" neck. 400 yards range High Power For Larger or Stubborn Dogs Expands to 2 or 3 dogs Waterproof transmitter Waterproof receiver Up to 16 levels of continuous and momentary stimulation Tone only button Low battery detect feature in both transmitter and receiver Replaceable, rechargeable NiMH batteries Very small transmitter (3.2 oz.) Very small receiver (2.8 oz.) Lanyard  more