【Bud-free comfort】Perfect Christmas gift for exercising and working from home. Unlike traditional wireless earphones, bone conduction headphones sit in front of your ears leaving them open. No worries about “hot” ears even running on the hottest days. Lightweight 26g makes them hardly noticeable. 【Open-ear safety】Whether you are running, cycling, sprinting or hiking, OpenRun wireless sports headphones provide the safest way to listen to music or podcasts without blocking out your surroundings. 【England Athletics' official headphones partner & IP67 waterproof】As a pioneer of bone conduction technology, we work on safe sport and are the only sports headphones brand recommended by England Athletics. IP67 waterproof wireless headphones, fully considers the outdoor environment during exercise, perfect for intense workouts.(Not suitable for swimming) 【8-h calls & Bluetooth V5.1 】-Quick charge and long endurance provides music even during full Marathons. Dual noise-canceling mics with Bluetooth V5.1 delivers an outstanding listening experience. 【Outstanding sound experience & 2-year warranty】With advanced technology, OpenRun Bluetooth headphones bring you exceptional sound quality. Product comes with 2-year warranty