Very simple and easy to use interactive rattle toy for your kids. One of the best designed rattle toy. 👋Tap on rattle or shake with phone - two types of usage 🔒Works also wit locked phone - switch off rattle from widget 🎵Swipe for change rattle - included 4 awesome designed rattles with sound effect 👶Child lock included - eliminate unwanted clicks We are constantly working hard to bring you new features. Please feel free to email us if you have any problems or tips. We would also love if