3-in-1 mobile: fits most play yards or travel cots, car seats, strollers and bassinets. Designated connector for each mode of use. Electronic mobile with 30 minutes of pleasant music. Mobile consist of Large clip for stroller, Velcro fasten for infant carrier, Up to 30 minutes of 5 different continuous melodies and Universal attachment fits most pack & plays or travel cots, strollers and bassinets