Inside this sweet Peaceful Panda is a secret sleep solution – a sound machine that plays 8 soothing sounds and melodies! With favorites like a mother's heartbeat and Rockabye Baby, these soothing sounds are scientifically proven to help babies and children go to sleep faster.Best of all, Peaceful Panda can grow with your child and become a calming lovey that helps comfort your child to sleep for years to come.Key FeaturesCOMFORTING: Our products are designed to help calm and soothe children to fall asleep better and make bedtime more pleasant and comforting8 SOOTHING SOUNDS: Choose between heartbeat, rain, waves, whale song or 4 calming lullabiesLULLABIES: Twinkle-Twinkle, Rockabye Baby, Classical Lullably & Tranquil MelodySMART SENSOR: Reactivates sound when baby wakes up. Automatic shutoff 23-45 min for soundEasy Hook and Loop fastener for attachment to crib, stroller or car seatRequires 2 AA batteries (included) Recommended for ages 0+