All collars are made of rugged material for years of maintenance-free service. The transmitter is sealed and is completely waterproof. A magnetic shut-off switch deactivates the collar when not in use to conserve
battery life. Each collar is color coded to distinguish the channel it operates on.

QTS-XL - Extended Range, Long Life, Lightweight (7.7 oz) Collar. You can expect to receive up to 50% more range with the QTS-XL. It will clearly out-perform most collars on the market. The QTS-XL will offer you six to eight years of maintenance-free service from the battery. Comes with 3 Year Warranty.