SanDisk 1GB Sansa Shaker Blue MP3 Player. The Sansa Shaker features many ways to listen to and share songs. It has a built in speaker to enjoy music without ear buds, to play your favorite music, and listen with your friends and family. Plus it comes with two headphone jacks. You also have the ability to play and share SD cards loaded with your favorite songs. A SanDisk SD Memory card included. Changing songs on the Sansa Shaker is a snap or rather, a shake. You can impress your friends by shaking the device to jump to the next song, or use the colorful controller bands for forward and backward changing as well to manipulate volume. The Sansa Shaker is available in a choice of colors, and comes equipped with a USB cable, lanyard, pre loaded songs, and a colorful array of stickers so kids can customize their device. A AAA battery is included which allows up to 10 hours of music life when using headphones. Note: 1 megabyte/ MB equals 1 million bytes/ 1 gigabyte/ GB equals 1 billion bytes. Some of the listed capacity is used for formatting and other functions, and thus is not available for data storage.