With a rugged, ultracompact receiver that's waterproof and submersible, the Sportdog 425 Spare Collar allows you to train an additional dog, with 14 different correction settings to customize the training.
Dimensions: 2.5"L x 1.5"W x 1.25"D.
Weight: 3.3 oz., collar and receiver.
Batteries: Two lithium ion batteries, included.
Battery life: 40-60 hours, rechargeable.
Range: 500 yards.
Dog collar fits up to a 24" neck.
Expands your Sportdog 425S Training System to multiple dogs.