Used owlet dream duo sock set, comes with Owlet Cam, Dream Sock Sensor, Base Station, Access to Dream App. Know when Baby may need you with our most advanced monitoring system yet. The NEW Dream Duo combines the Dream Sock and Cam 2 and is the only baby monitor to track heart rate and average oxygen as Sleep Quality Indicators—all while streaming HD video right to your phone. Our Predictive Sleep Technology automatically tracks your baby’s sleep & wake windows so you don’t have to, and the Dream App will let you know when Baby might be ready for sleep.