Unlike the original OpenRun Pro (which are now discounted to $159.95), these don’t rely on bone conduction alone. Bone conduction drivers usually sit by your temples and rely on vibration to transmit sound into your skull.

They're available now, priced at $179.95 / £169 / AU$299. Bone conduction headphones haven’t changed much in design since the days of the Aftershokz Aeropex (although we do also have the best open-ear headphones now), and with the OpenRun Pro 2 Shokz ...

Shokz's running headphones deploy a hybrid design that melds aspects of bone conduction with air conduction. The bone conduction aspect handles mids and higher frequencies, whereas the air conduction controls the lower bass, resulting in an experience that Shokz claims blends absolute clarity with genuine power.

The new Shokz OpenRun Pro 2 are the follow-up to the widely popular bone conduction headphones used by dedicated athletes, like marathoners and triathletes. They're now available for $180. The OpenRun Pro 2 are comfortable as ever,