Only INNOTEK can offer in-ground pet fencing and remote training system in one package. The comfortable UltraSmart collar does double duty, both as a containment collar and as a remote training collar. Train in the yard or outside the property. System includes all elements of our UltraSmart in-ground fencing, plus a pocket-sized controller. Training features 9 levels of stimulations, tone only training and more. NEW! ReadyTest™ - Ensures correct collar fit, graduated battery status, and warns of potential system problems for greatest pet safety. Contoured, Integrated Collar - 30% thinner than other collar designs, a fraction of the weight. More comfortable for the dog. Waterproof - Collar stands up to rough punishment, even submerged under water. Rechargeable Collar - Fast-charging, long life Lithium Ion batteries. Expandable - Add multiple dogs to the in-ground fencing system with additional INNOTEK® accessory collars (sold separately). Introducing ReadyTest™ Right collar fit indicator. Your dog’s comfort and safety depends on a proper collar fit. Too loose and the collar won’t work and too tight your dog won’t be comfortable. Only INNOTEK® UltraSmart™ collars emit a brief audible click to let you know the collar is on right and functioning properly. On-board systems check. Don’t leave your dog’s safety to chance. UltraSmart™ collars alert you to potential problems before it’s too late. After charging, UltraSmart™ collars automatically perform a vital systems check to ensure proper operation of the power and electronic circuits. A green light means all systems are functioning properly and a flashing red light indicates there is a collar problem. 3-way battery indicator. Never run out of battery power again. ReadyTest™ monitors battery levels in your dog’s collar. Green is more than half a charge, yellow means less than half and red means charge the collar at the next opportunity. AN INNOTEK® EXCLUSIVE!