Petlinks Mystery Motion Concealed Mouse Electronic Cat Toy replicates the movement of a hidden prey. Simply attach the feather wand to the motorized unit and securely place the fabric over the control center of the base. The motorized unit lets you customize the fun with 4 different speeds: slow, medium, fast and random. Petlinks Mystery Motion Cat Toy will promote activity and help improve your cat's well-being. Requires 3 AA batteries (not included).