Louis Lion Smart Sensor - This adorable lion is a white noise plush that plays sound plush that plays 8 soothing sounds and melodies! These soothing sounds help babies and children go to sleep faster. The Louis Lion includes a Smart Sound Sensor. If your baby wakes up and makes any sound, the sensor restarts the music to help baby fall back asleep. When bedtime beckons, the plush easily attaches to any crib by using the hook-and-loop fastener behind its head.Key Features: COMFORTING: Our products are designed to help calm and soothe children to fall asleep better and make bedtime more pleasant and comforting 8 SOOTHING SOUNDS: Choose between heartbeat, rain, waves, whale song or 4 calming lullabies LULLABIES: Twinkle-Twinkle, Rockabye Baby, Classical Lullably & Tranquil Melody SMART SENSOR: Reactivates sound when baby wakes up. Automatic shutoff 23-45 min for sound Easy Hook and Loop fastener for attachment to crib, stroller or car seat Requires 3 AA batteries (included)Recommended for ages 0+