Used for couple of weeks. In great condition. Peace of Mind: 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 FDA-Cleared: Dream Sock is the first-of-its-kind FDA-Cleared smart baby monitor and is intended for use with healthy infants between 1-18 months, 6-30 lbs. Track Live Pulse Rate & Oxygen: View and track your baby’s pulse rate, oxygen, wakings, and sleep trends from anywhere and in real-time via the Owlet Dream App.