How to useStep1.You must choose a ?¡ãLead Singer Bird?¡À、then and turn on the choir Mode.Step2.When you whistle、You?¡¥ll see the bird twisting of the head to prove he is the leader、another one to swing.Then you will hear the leader bird singing、another singing along.Step3.You can choose as much as birds to follow singing to build up a band you like!Specification :Material : PlasticColor : RandomWeight : 75gSize : 18 x 13 x 5cmPackage includes: 1 x Digi Birds Singing Tweet Electric Toys