Please ensure Javascript is enabled for purposes of website accessibility How does Halo keep my dog safely contained inside my Halo Fence? - Halo Collar
Holiday Sale: Save $30! Order today to receive by 12/24.

When approaching a boundary, your dog will receive a customizable warning. This triggers your dog’s associative memory, and your dog will learn that a warning means “keep away” from the boundary. Two more tiers of preventions are applied if your dog is distracted and ignores the boundary.