Features 10 soothing classical melodies 20+ minutes of continuous play 2-in-1 mobile base features a mirror for self-discovery and detaches to become a soother Unique Drift Off feature ? melodies gradually soften after each 10 minutes. Perfect Fit Universal Crib Attachment fits most crib rails Multiple play modes ? melodies, ocean sounds, and white noise. Remote control is active up to 15 feet Battery life indicator turns red when battery is low