"Aftershokz Openrun Wireless Bluetooth Headphones Sweatproof Earphones - Grey DescriptionOpenRun (Quick charge version of Aeropex): Aeropex are the top selling model of Shokz. Now they have been updated with a quick-charge feature and re-named as OpenRun. A 10-minute quick charge gives you 1.5 hours of listening time so you can get on-the-go fast Quick Charge IP67 Waterproof (Not for swimming)8-Hour Battery Life26g ( Lightweight + Comfortable)A 10-min charge for 1.5 hours of usageRe-engineered technology PremiumPitch™ 2.0+ delivers the widest dynamic stereo sound that bone conduction technology can offer. Say hello to deeper bass, less vibration and louder volume. In The BoxOpenRun Bone Conduction Sports HeadphoneMagnetic charging cableCarrying bag "