Product Description： Parents play an important role on how to enlighten their baby to learn something at early education. Our crib musical box can not only entertain your baby with its downloading/rotating function and other humanized settings, but it can dig their potential of learning something. In addition, it also has the ability to relax babies if needed as well\r\n \r\nDownload Songs Connect product to computer with included USB cable, and the product will make a prompting sound to indicate the successful connection. Then you can download or upload songs. Support music format: MP3, WAV, etc\r\n \r\nSafe and Easy to Use Made of high-quality and environmental protection ABS material with clear button layout, this baby crib musical mobile is easier and more reliable to use.\r\n \r\nLess Power Consumption Powered by 2pcs AA batteries (Not included) it’s engergy-saving as it can automatically power off if the music is paused for 10 min without any other operation.\r\n \r\nPackage Includes 1 x Baby Crib Mobile Music Box 1 x USB Cable 1 x User Manual