Micro Pets-i move, walk, sing and chase things like they have a mind of their own, just tap with their ball or your finger to activate the different modes! And when Micro Pets-i get together they have even more fun - watch them sing along together and see if they get on! With 9 great pets to collect there is hours of interactive fun. Requires 2 x LR44 batteries (included). For ages 6 years and over.