By way of Gearlog comes word that there is now a manufacturer selling bike helmets with built-in Bluetooth devices to enable cyclists to take calls while biking. Presently, I occasionally take calls by tucking my cell phone into the straps of my helmet while Xooting (I do not recommend doing this!).

UClear Bicycle Helmet allows users to take phone calls.

UClear, the manufacturer, says that the helmet is water resistant and the Bluetooth device should support 10 hours of talk time on one charge.