comes with all.pieces and 3 socks for ages 0- 18 months. this gave me so much peace of mind when my baby was tiny. used from 1-6 months and don't feel like I need it anymore. sometimes i have to fiddle with it a little bit to get the charge going (like 20 seconds) hence the low price. some discoloration on socks. always only hand washed with baby friends soap and laid out to dry. offers welcome