Q-SOUND is a concept Bluetooth headphone that integrates a solar panel placed into the headband that allows the user to enjoy music through any digital audio player that have Bluetooth connectivity. Moreover, you can take calls in any Bluetooth-facilitated cell phone and if neither your music player nor your cell phone has Bluetooth connectivity, the 3.5mm jack will allow you to establish a wired connection. The main ingredient of the headband is flexible plastic with amorphous silicon solar cells. As a result the adjustable rubber-based earpieces are able to fit different sized and shaped heads.

Two NiMH rechargeable batteries are located just above either earpiece within the headband with a capacity of 800mAh and 1.2V of operating voltage, which can keep the headphone functional for up to 40 hours. Aside from the batteries, charging in the sunlight for an hour will provide the headphone more than 2.67 hours of playback time when playing on maximum volume. When it comes about sound quality, Q-SOUND is designed to provide high quality music and clear voice. This futuristic headphone design will not only ensure energy-efficient music enjoyment, but also will keep your wireless freedom intact.

via EcoFriend