Owlet Rest Assured 2

This was purchased December 2017. We only used it for the first two months and only used one of the three socks included. Comes with Base 1- 0-1 Month Sock 1- 1-4 Month Sock 1 - 4-18 Month Sock 1 Charger 1 Base Wall Plug 1 Sock Sensor Instruction, quick reference and Disclaimer booklets The Smart Sock comfortably wraps around your baby’s foot to track heart rate and oxygen levels using clinically-proven pulse oximetry.