Spray collars are devices designed to help train dogs by using a gentle spray of citronella or unscented air to deter unwanted behaviors. When the dog barks excessively or engages in other undesired actions, the collar releases a spray that interrupts the behavior, encouraging the dog to stop. This method is often considered more humane than shock collars. These collars are adjustable and can be fitted to various dog sizes. They typically come with a refillable spray canister and a battery-operated mechanism. Many pet owners find spray collars effective for managing barking and promoting better behavior in their pets, such as dogs.