Eton is behind some of the most exciting solar products around. The Eton Rukus Solar Powered Bluetooth Speaker System is the latest addition to the Eton family. This Bluetooth speaker has an e-ink display and offers two full-range speaker drivers. As you can see in the picture, a 40 inch square solar panel is installed on this device. You can also charge this system using an AC adapter.
The E-ink display is readable under sunlight, making this a perfect speaker system to take with you. The device will be announced at CES but you will have to wait till the second quarter of 2012 to get your hands on it.