Ewan has had a smart upgrade and comes equipped with the MoonMode smartCRY sensor, this means Ewan will learn your baby's cry and automatically switches on activate and helps to resettle them back to sleep. It will listen for up to four hours every time your baby cries and has four soothing sounds: real womb recordings, vacuum cleaner, rainfall and harp melody - all combined with resting heartbeat to calm and reassure your baby or toddler.