Specifications and Features:
Original collar receiver for the FieldTrainer 400 and SportHunter 800
Unit can be used with any SportDOG Brand FieldTrainer, SportHunter, WetlandHunter, HoundHunter, UplandHunter, and ProHunter transmitters
Compact (2.8 oz.)
Waterproof/submersible
DryTek Waterproof Design Technology
2 collar straps included
Low battery detect feature
Long-life, replaceable, rechargeable NiMH battery