Devotec Industries has mostly kept itself occupied with solar chargers and the like to date, but it looks to be branching out somewhat with its latest product, which appears to be one of the first solar-powered Bluetooth speakers to hit the market. Obviously designed primarily with portability in mind, the Solar Sound packs a pair of 2W speakers, along with a retractable 3.5mm cable to accommodate your non-Bluetooth devices, a built-in mic for some hands-free calling when paired with a phone, a nifty touch panel display, and a promised 8 hours of use from the internal battery (which recharges in 12 to 24 hours from the solar panel, or four hours via AC or USB). Sold