Fitness earphones are typically made to let you hear the world, and the Shokz OpenRun Pro 2 let you do that in all the right ...

The Shokz OpenRun Pro 2 bone-conduction headphones provide some of the best audio quality so far, along with a super lightweight fit.

Active Noise Cancellation: Or ANC. It's that ability to black out the sounds of the world and the people that inhabit it.

Shokz's bone conduction headphones have received rave reviews, and as a solo runner, I found it easy to see why ...

Shokz's bone conduction headphones have received rave reviews, and as a solo runner, I found it easy to see why ...

Shokz's bone conduction headphones have received rave reviews, and as a solo runner, I found it easy to see why ...

For the half marathon itself I opted for the Shokz OpenFit Air, relatively affordable headphones (£119) that sit just over ...