Weighing just 26g, the Shokz Openrun (previously Aftershokz Aeropex) offer revolutionary open-ear listening. With nothing inside or over your ears, patented bone conduction technology allows for total situational awareness and comfort while you listen. Re-engineered technology delivers the widest dynamic stereo sound that bone conduction can offer. Say hello to deeper bass, less vibration and louder volume. They are also fully sweat and water resistant, meaning that they are ready for intense workouts and extreme weather, and the wraparound Titanium frame ensures a secure fit that will stay in place during any workout or adventure. With 8 hours of battery life and up to 10 days standby time, enjoy music, calls, audiobooks, and podcasts all day long. **Please note: the Shokz Openrun were recently renamed; previously known as the Aftershokz Aeropex. When ordering online, the packing you recieve may be branded with either name but the product within remians identical.Features: 10-minute quick charge guarantees 1.5 hours of listening time Buds-free listening experience, silicone coating and ultra-lightweight design for all-day comfort Open-ear design allows you to hear music and traffic at the same time for high-quality hearing experience without compromising safety Wrap-around titanium frame secures a fit that will stay in place during any workout or adventure Re-engineered technology PremiumPitch 2.0+ delivers widest dynamic stereo sound that bone conduction technology can offer Deeper bass, less vibration and louder volume IP67 water-resistant standard keeps your headphones safe from splashes, sweat and getting caught in the rain 8 hours non-stop listening to music and calls Equipped with QualComm Bluetooth 5.1 chip, dual-mics and CVC algorithm to sharply separate your voice from background noise Please note: the Shokz Openrun were recently renamed; previously known as the Aftershokz Aeropex. When ordering online, the packing you recieve may be branded with either name but the product within remians identical. What's In The Box: Openrun Bluetooth headphones Magnetic charging cable Carrying bag / silicone carrying case Specifications: Battery life: 8 hours Standby time: up to 10 days Battery capacity: 160 mAh Quick-charge: 10 minutes for 1.5 hours of usage Charging time: 1.5 hours Charging port: magnetic induction Maximum charging voltage: 5V ± 5%