If you’re in the market for a Bluetooth wireless speaker, then check out the Rukus Solar from Eton. The whole device is solar-powered, and connects to smartphones and other devices via Bluetooth or cables.
The Rukus Solar comes with two speakers with a built-in carrying handle. The front panel has the music controls as well as a monocrystal solar grid. The control panel uses e-ink, for added visibility and low power consumption. The battery will power the speakers for 8 hours, and it takes 6 hours to juice it up in direct sunlight. It can also be connected via an AC adapter for speed up this process. Rukus comes with a USB port so that it can charge up other devices.
The Rukus is available in green, black, and white. You can get it for $150(USD) over at Amazon.