The SportDog FieldTrainer 400 and 400s Remote Trainers are rugged electronic training systems that use break-through technology for unmatched reliability and ease of use. Backed with a lifetime warranty. Compact waterproof receiver and transmitter that is ideal for training in the yard, field, or out hunting with dogs that hunt close. Can be expanded for control of up to 3 dogs by adding a Sport Dog brand extra collar. Works at up to 400 yard range. Comes with 1 collar and 1 receiver with 16 levels of continuous or momentary stimulation. Works with replaceable rechargeable NiMH batteries. The 400S model is used for the more stubborn, hard to train dogs. Extra Receivers available at additional cost.
