We have seen many quality wireless headphones in the past. HELIOS is not your average pair of headphones though. It is solar-powered, allowing you to listen to music and phone calls wirelessly without having to worry about carrying batteries with you. HELIOS has a solar panel mounted on top to draw power from natural light. You can also charge it through an AC outlet.
HELIOS has a 430 mAh battery inside. The battery is good for 15 hours of music. It also has a Micro USB port and a Jack 3.5mm. You can find it on Kickstarter.