Monitor your baby’s wellbeing while they sleep with the award-winning Owlet Smart Sock 3. Trusted by millions of parents around the world, the Smart Sock 3 tracks your baby’s oxygen levels and heart rate readings with proven pulse oximetry technology that goes beyond the capabilities of any other baby monitor Features: Innovative design, the Smart Sock is the smartest baby monitor, using pulse-oximetry technology proven to be both safe and accurate Battery life: 16 hours (get 8 hours in 20 mins or a full charge in 90 mins) Free mobile app, accessible on any device. Pair this up with your base station, and you can check on your baby’s live readings anywhere with Wi-Fi! Use the sleep history feature on the app to see how well your baby slept, and create new routines as your baby grows Base Station glows green when readings are normal and flashes red light and plays sounds when readings leave pre-set zones The Smart Sock works with the Base Station in the event of Wi-Fi disruption Comfortably wraps around baby’s foot and can connect to a base station up to 100ft away What’s in the Box:Smart Sock SensorFabric Socks, 2 left & 2 rightBase StationCharging CordsPower Adaptor Specifications: Dimensions: H:9.0 x W:6.0 x D:5.0 cm Colour: Bedtime Blue Guarantee:1 Yr Model Number: OWSO-BB Self Assembly Required: Yes