First-of-its-kind FDA-cleared Dream Sock provides caregivers with a deeper understanding of their infant's safety and well-being through real-time health readings and timely notifications when their baby needs their attention.What's in the box:One Dream Sock SensorFour Fabric Socks - Fits babies 0-18 months, 6-30 lbsWireless Charging Base StationAccess to the Owlet Dream App