Soothe baby with sweet songs, nature sounds and your recorded voice. Features: Cry-activated smart sensor distinguishes between cries and other sounds Automatically responds to baby’s cries Plays 3 lullabies and 3 soothing sounds Voice recorder lets parents soothe baby with their voice Up to 20 minutes of continuous play Removable sound module is easy to set & customize Easily attaches to crib with hook-and-loop fasteners Grows with baby: becomes a huggable friend for toddlers Requires 3 AA batteries (included) Size (inches): 6l x 4w x 11h; (cm): 15l x 10w x 28h