Dream Sock is the first-of-its-kind FDA-Cleared smart baby Digital monitor to offer Live Health Readings and Health Notifications, for use with healthy infants between 1-18 months, 6-30 lbs Track Babys pulse rate, oxygen, wakings, and sleep trends in real-time via the Owlet Dream App. View Babys historical health readings & trends in the app to gain valuable insights. Clinically-proven to offer medical-grade accuracy, even through gentle motion, across all skin tones. The free Owlet Dream App covers all the essentials, and you can upgrade to Owlet360 for additional, advanced features. Note for setup: Owlet device and phone or tablet need to be connected to 2.4 GHz. After setup, you may move your phone or tablet back to 5 GHz.