Baby's vitals are always being monitored and available on your smartphone. Track sleep patterns naps heart rate and blood oxygen levels. Receive daily sleep reports based on customizable sleep tracking sensitivity. Get notifications if baby's vitals change or the sock detaches. Optimized for accurate data and reporting. Dirt resistant flexible soft and washable. Up to 24 hours of tracking on a single charge. Comes in three sizes for babies 0-18 months. Magnetic base serves as a wireless charging pad. Base powers with 5V 1A AC power.