Aftershokz Trekz Air £150
The next generation of bone conduction technology is inside these light, organically designed open-ear headphones. Bulk has been cut and titanium added to ensure they fit securely with better sound quality. They're lightweight and comfortable, sitting outside the ear to avoid buds popping out. The flexible neck band
means you can drop them to your shoulders and run unencumbered at any point. The sound isn’t as full as with more traditional headphones, but Trekz Air are designed to let you hear what’s going on around you too – a big safety plus that also makes them a good choice for marathons and races where you want to hear the roar of the crowds. Controls are simple with one large multi-function button on the left bud that also summons Siri, and two smaller volume controls behind the right ear. Battery life is six hours from a single two-hour full charge; and they’re IP55-rated to repel sweat, rain and dust. Available in grey, blue and green.