I tested H2O Audio's affordable, no-frills, bone-conduction running headphones — and there's something to be said for simplicity
H2O Audio Tri Run: Two-minute review The H2O Audio Tri Run are bone conduction headphones designed for runners and cyclists who want to listen to music while staying aware of their surroundings. They undercut rivals on price and strip everything back to the essentials. No app, no frills, just good enough audio and a straightforward experience. They’re not for swimming, despite their IPX8 waterproof rating. H2O Audio already makes a range of multi-sport devices, including the H2O Audio Tri 2 Pro Multi-Sport . But the Tri Run rely solely on Bluetooth with no onboard storage, so there’s no point taking them to the pool because the water will block the signal. What that waterproofing means is you don’t need to worry about sweat, rain or cleaning them with water. Bone conduction transmits sound through your cheekbones, bypassing your ear canal. (To find out more, we have a handy how bone conduction works guide.) They’re cheap, reliable and mostly comfortable. Sound is acceptable for t...