Owlet Baby Monitor Smart Sock 2 (BM03NNBBYC)

Know your baby is okay: Track your baby's heart rate and oxygen levels while they sleep using clinically-proven pulse oximetry, and be notified if something appears to be wrong. Have complete peace of mind knowing you can keep track of your baby's heart rate and oxygen levels from anywhere. Worry less and sleep better: The Smart Sock connects to a base station that glows green letting you know everything is okay, but uses lights, sounds and app notifications if heart rate or oxygen levels are too high or too low. Parents can sleep better and have less anxiety knowing they'll be made aware if levels go outside of preset zones.