Bone Conduction Headphones, IPX6 Open-Ear Bluetooth Sports Headphones, Ultra-Light Headphones Wireless Bluetooth for Exercise Cycling Running [Lightweight] The headset weighs 24g, so light that you can hardly feel its existence. This is a sports headset suitable for indoor and outdoor sports. [Stable] The wrap-around structure of the headphones not in the ear can withstand most sports scenes and is stable and will not slip. [Silicone] The silicone shell is sprayed on the skin contact surface, so there will be no pain even if worn for a long time. [IPX6 Waterproof] The IPX6 level can protect the headphones and still work normally under heavy rain, making them suitable for open ear bone conduction headphones for outdoor sports. [Battery Life] 1.5 hours of charging can provide 10 hours of use. Buy with confidence. Check out our reviews. Also, happy to combine shipping to save you when you buy multiple items.