Designed to bring comfort, companionship, and fun without the hassle of a real puppy. Built-in sensor and speaker recreate the most delightful moments of owning a dog. Pet therapy products help seniors with Alzheimer's and dementia create meaningful interactions with loved ones. The built-in sensors respond to motion and touch, feel the heartbeat when petting your pup. Featuring a lifelike coat and authentic sounds. The pup will respond to your voice with BARKBACK technology! Spot clean with any nontoxic cleaner or disinfectant. Batteries included 4 x 1.5V Alkaline Batteries.