2261 Features: -Lumin disk battery operated.-Looks great on any table or desktop.-Including removable table top stand, which makes it easy to hang on a wall with its built-in keyhole hanger.-Great for parties and get-togethers or quiet personal enjoyment.-2 Modes to choose from: constant flow of plasma or sound responsive. Color/Finish: -Color: Green. From the Manufacturer Can You Imagine a portable, battery operated display which will respond to you touch or dance to your music? We did. The battery operated flat panel Lumin Disk responds to your touch or dances to you music or you can just watch it put on a stunning plasma light show. The Lumin Disk looks great on any table or desktop or hangs easily on a wall with its built in keyhole hanger. Great for parties and get together or quiet personal enjoyment. From the Manufacturer Can You Imagine a portable, battery operated display which will respond to you touch or dance to your music? We did. The battery operated flat panel Lumin Disk responds to your touch or dances to you music or you can just watch it put on a stunning plasma light show. The Lumin Disk looks great on any table or desktop or hangs easily on a wall with its built in keyhole hanger. Great for parties and get together or quiet personal enjoyment.