Features: This crib bell is designed to hang on baby crib holder, easy to install. Electric crib bell is powered by 2pcs AA batteries, switch on and then the bell will play melodies automatically. You can hang small plush dolls on the bottom hook. Your baby will fall into sleep along with soft and beautiful melody. Help to pacify crying baby and enhance your baby's cognition of music. Specifications: Condition: Brand New Material: Plastic + Metal Music Box Color: White Full Playing Time : 3 minutes(±30 seconds) Playing Speed: 12-20" Suitable Age: 0~36 Month Power Supply: 2 x AA Batteries (not included) Size(D x T): approx. 8.2 x 3.4cm / 3.23 x 1.34inch Weight: approx. 104g Package Included: 1 x Baby Crib Bell(other accessories & batteries not included) Melody: 1. It's a small world 2. Frere jacques 3. Twinkle twinkle little star 4. Brahms lullaby 5. Mary had a little lamb 6. Schubert's lullaby 7. Mozart's Lullaby 8. La le lu 9. Old macdonald had a farm 10. Rock a bye baby 11. Let me be your teddy bear 12. Hush, little baby Note : 1. Please allow 0-2cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. .