Pulse Oximetry Technology
The Smart Sock uses pulse oximetry technology to send vital information to a base station, which is designed to notify you with lights and sounds if something appears to be wrong. Parents who use the Owlet Smart Sock report better sleep and less worry.
Each unit includes 3 washable socks that comfortably wrap around the baby's foot and connect to a base station up to 100 ft. away without wires. Socks fit most infants from 0-18 months or 6-25 pounds and should be hand washed regularly and alternated from right to left foot each night. Always keep the base station at least three feet away from your baby's crib.