Features 1. You need to lightly tap the toy. Toys will jump, roll, and play music on the floor. Baby will be interested in sound and movement when crawling, and will climb to catch up with toys. This can exercise the baby's crawling ability and hand eye coordination. 2. The back of the toy has a zipper and inside is a ball that controls jumping. You need to prepare 3 AAA batteries and use a Phillips screwdriver to disassemble and install them. After installation, turn on the switch, put the ball back into the doll and zip it up. 3. Firstly, clicking on the front of the toy will cause it to jump and play music. Each time you click, there will be about 50 different types of music; The second method is to have a direct conversation with the toy, and the toy will repeat what you said with interesting sounds. 4. The outer layer of the toy is made of soft dolls made of the best materials to ensure that the baby does not produce toxic substances when gnawing. Cleaning will not cause fading. Suitable size, easy to carry, and can also be used as a doll to accompany your baby. 5. This is a toy gift suitable for babies who are just starting to crawl. Its appearance is exquisite, soft, and cute, and babies will love it when they receive it. Specification Name: Mengmeng Series Jumping Ball Material: Polyester (polyester fiber) Size: 14cm (diameter) cm Product weight: 0.3kg Single package size: 15 * 18cm Function: Study, Play, Soothe Application recommendation: Suitable for various entertainment scenarios Washing method: The ball is equipped with an inner liner, which can be removed during washing. Be careful not to soak, hang in a ventilated place after washing to dry. Package Include: Baby Ringing Jump Ball x1