Unit are brand new sealed Open-Ear Design - Patented bone conduction headphones deliver premium audio through the cheekbone. Unlike over ear headphones, Aeropex keeps you connected and aware of your surroundings. Lightweight & Comfortable - Experience unmatched comfort with our most lightweight and comfortable sport headset, featuring a bud-free, pain-free design for all-day listening. 8-Hours of Music & Calls - Enjoy 8 continuous hours of music or podcasts, plus dual noise-canceling mics for crystal clear calls. IP67 Waterproof Rating - Completely sweat and waterproof earphones for workouts, fitness and running. Moisture detection alert included for safe charging. (Not suitable for swimming) Wireless Convenience - Easy multipoint Bluetooth pairing with iOS and Android Bluetooth-ready devices. Multifunction Button to play, pause, skip, activate voice assistant, answer calls, etc.with one click.