Walking Barking Tail Wagging Tail Chiuahua Toy Dog Batteries and EasyBuy Sales Crayon Set Included- Bundle Adorable Chihuahua Puppy Dog. Walks, Barks and Wags its tail! Requires 2 AA batteries (INCLUDED in the box) Batteries company varies. Easy to put batteries in! No screws needed!! BONUS EasyBuySales Crayon Set Included!!