Monitor your baby while they sleep with an Owlet Dream Sock Smart Baby Monitor. The compatible app allows you to track readings and offers support to promote healthy sleep habits. Tracks baby?s sleep quality indicators to help create healthy sleep habits. Offers personalized sleep support for baby. Review how long and how well your baby slept. Provides weekly expert parenting tips to build parenting skills. Designed for babies 1 to 18 months and up to 30 lb. View readings and get tips for better sleep in the compatible Owlet Dream app. Includes socks in sizes 1 and 2 (right and left sock included for each size), a Dream Sock sensor with rechargeable battery, base station, charging cords and quick-start guide. Backed by the manufacturer's 1-year limited warranty.