Japan-based company Sanwa introduces the 400-HS015 bond-conduction Bluetooth headset/sunglasses. The sunglasses supports Bluetooth with headset, hands-free and A2DP profile supporting phone calling and music streaming.
Instead of earbuds, the Sanwa 400-HS015 uses bond-conduction technology to keep your ears free. It has built-in microphone and volume control. The Bluetooth sunglassess costs 19800 Yen.