Shokz OpenRun Pro 2 review: bringing bass to bone conduction headphones

New running headphones combine bone conduction and open-air speakers for more rounded sound So-called bone conduction headphones are a runner's best friend, allowing you to be fully aware of the outside world while you listen to your motivational tunes. But the technology simply can't generate decent bass - a problem that the open-ear headphone firm Shokz thinks it has solved with its latest OpenRun Pro 2. The follow-up to the popular OpenRun Pro and OpenSwim lines, the OpenRun Pro 2 cost £169 ...