Baby Sleep Monitor with Base Station - Green Sock VersionMonitor babys sleep with notificationTrack, record and store baby's sleeping statistics, including heart rate, movement and average oxygen level, from which you can judge baby's sleep quality. Your smartphone, monitor and base station will receive real time notifications if any irregularities are detected Stand alone monitor bring convenienceYou can get readings on the monitor screen which will beep for unexpected monitoring results. It can store 4