Condition: Gently Used "The Owlet is first of its kind. It monitors baby's heart rate and oxygen levels, alerting you if there’s a problem. A must-have baby monitor for sleep deprived parents! This new and updated version of the Owlet Smart Sock helps put your mind at ease with improved features including increased Bluetooth range, fewer false alarms, and a redesigned more user-friendly sock. Please note, this can no longer be connected to iOS (Apple) smartphones." Set of 3 socks included?: Yes Smart sock sensor included?: Yes Changing cords included?: Yes Base station included?: Yes Instructions included?: Yes