Winner of the 2013 Red Dot design award, Cardo BK-1
is the world’s first Bluetooth Cycling Communication and Entertainment
System. It allows communication between up to 5 cyclists at a distance
of up to 500m/1600feet, and features mobile phone connectivity,
in-the-ear instructions from GPS devices and MP3 stereo music streaming
from compatible devices. All this without being encumbered by dangling
wires. Also available from amazon
Available in Europe here