Pets Know Best HuggiePup Cuddly Puppy Behavioral Aid Toy, Great for Crate Training- Pulsing Heartbeat, Heating Pack- Golden DogLIFE LIKE HEARTBEAT Add the life like heartbeat module to the hook & loop bottom pouch of the plush pup and begin watching your pet relax! The module replicates a heartbeat to help comfort your furry friend. Module requires 2 AAA batteries which are NOT included. REUSABLE HEAT PACK The non toxic heat is all natural and simple to use with no electricity. Just heat in the microwave and add the heat pack in the bottom hook and loop pouch. Once inserted