Snuggle Puppy anxiety solution for puppies and dogs. Offers real feel heartbeat and physical warmth. Calms fear, loneliness and separation anxiety. Helps puppies sleep through the night. We purchased this for our 10 week old puppy and it certainly helped calm her when going down for the night. We never actually put it in her kennel. We just laid the puppy on top of her kennel and she could hear the beating heart. We did not use the heat pack and it is included. Original batteries still working but uses AAA when replaced. Purchased this from Amazon September 2023. It is in excellent used condition. No rips tears or damage.