OpenRun (Quick charge version of Aeropex): Aeropex is 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-ChargeA 10-minute quick charge guarantees 1.5 hours of listening time. OpenRun is always the best running partner ready to fuel up your exercise.Only 26gOpen-Ear ComfortWith a buds-free listening experience, silicone coating and ultra-lightweight design, OpenRun(Quick Charge Version of Aeropex) brings you all-day comfort no matter what challenges you take on.Open-Ear ListeningStay Aware and SafeBe open to the world around you. Open-ear design allows you to hear music and traffic at the same time. Whether you are running on the streets or biking in the mountains, OpenRun( Quick Charge Version of Aeropex) brings a high-quality hearing experience without compromising on safety.Full Titanium FitStability for SportsWraparound titanium frame ensures a secure fit that will stay in place during any workout or adventure. Move with freedom and confidence, even during dynamic workouts such as jumping or yoga inversions.Cutting-Edge Crystal-ClearAudio ExperienceRe-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.IP67 Water-Resistant StandardUnrivaled As You AreIP67 water-resistant standard keeps your headphones safe from splashes, sweat, and even getting caught in the rain.8 Hours Non-Stop Listening,Power On and OnPower up to 8 hours of music and calls. With OpenRun(quick charge version of Aeropex), you can blaze through your long day.Seamless ConnectionAmazing Call QualityEquipped with a Qualcomm BluetoothⓇ 5.1 chip, dual-mics and CVC algorithm to sharply separate your voice from background noise, you can experience clear and stable calls on the move.Different Size,Different Choice.0.83”/21mm shorter band, OpenRun Mini offers an exceptional choice for a better fit.It works just as good asthe Aeropex, even betterA 10-minute quick charge gives you 1.5 hours of listening time,OpenRun is always the best running partner ready to fuel up your exercise