It's durable yet light-weight collar is waterproof and adjustable to fit any dog. It has ten levels of correction and a low battery indicator.  The transmitter is also waterproof.  Both the collar and transmitter work off of a 9-volt battery (initial included for both). Comfort Fit Big Dog Remote Trainer features the NEW patent pending QuickFit buckle, so that the collar can be taken off or put on in a matter of seconds. The new design gives your dog some extra comfort.

A complete, comprehensive training manual shows how to properly use The Remote Trainer to make training a fun and rewarding experience for both the pet and the pet owner. The Remote Trainer can be used to deter unwanted behavior such as digging, chewing on furniture, jumping on guests, or barking. Or it can be used for basic obedience training such as teaching the "come" command.

Exclusive Features:

 Recommended for all dogs over 35 lbs. (See Small Dog Training Collar for Dogs under 35 lbs.)
 10 Levels of stimulation plus tone.
 100 yard range.
 Waterproof receiver & transmitter.
 Quick Fit Buckle for ease & comfort.
 Low battery Indicator.
 Uses a common 9-volt battery for collar & transmitter.
 Comprehensive training manual included FREE!
 Petsafe Lifetime Warranty.

The #1 cause of dog training collar failure is weak or dead batteries.  It is advisable to keep extra batteries on hand at all times, particularly during the intial training stages when your dog is becoming familiar with the system as the batteries will wear quickly during this time.