Feature: 1. Song Playing: 35 soft songs will help soothe a crying baby, music can attract your baby's attention, soothe their emotions, and make them feel relaxed and pleased. 2. Perfect Gift: You can hang small plush doll on the bottom hook. Smooth surface, simple and elegant, beautiful and practical, great birthday gift for baby. 3. Easy Installation: This music box is designed to hang on a crib frame, easy to install, perfect and meaningful toy for baby, make them feel happy. 4. Portable Design: Light weight and small, it doesn't take up much space, easy to store and carry, can be easily put into your bag, perfect for home and travel use. 5. ABS Material: Baby music box is made of excellent ABS material, safe and eco friendly, firm and sturdy, stable and wear resistant, has a long service life. Specification: Item Type: Baby Crib Mobile Bell Material: ABS Size: Approx. 14 x 9 x 3.5cm / 5.5 x 3.5 x 1.4in Battery Type: 2 x AA battery 1.5v (Not Included). Package List: 1 x Music Box Note: Please allow slight error due to manual measurement. Thanks for your understanding.