Memory Puzzle Dispenser Provides Entertaining Play, Encourages Exercise & Improves Memory by Rewarding Pets with Treats or Kibble.The Number of Treats Released Varies To Keep Things Extra Fun; Watch Your Pet’s Delight When They Hit the Jackpot & Get a Pile of Yummy Treats.Dog-Friendly Sounds Play with Each Push on the Release Button to Encourage Further Play. – 4 x size C batteries & 3 x size AAA batteries is needed.Release Button Attaches to Main Unit or Can be Placed in Another Room; Includes Suction Cup for Glass Doors & Staking Peg for Outdoor Use. Perfect Way to Spend Productive One-on-One Time with Your Pet; Exercise Your Dog or Cat of Any Breed and Size with Playful Activity & Tasty Treats