Smart Pet Love Snuggle Puppy Behavioral Aid Toy, It's a Boy, Blue Has a "Real Feel" pulsing heartbeat lasts up to two weeks of 24/7 use on one set of AAA Alkaline Batteries (include Eases crying, loneliness and separation anxiety in pets Disposable warming packs provide warmth, an extra source of comfort for your pet. Machine Washable with the heart removed