KOAR KBone IPX6 Bluetooth Bone Conduction Headset, Black HEAR OUTSIDE ENVIRONMENT -- Our open ear headphones don't block your ear, so you can hear what's going on around you STREAM MUSIC AND TAKE CALLS -- Hands free headset and built-in mic so you can talk on the go ENJOY LIGHTWEIGHT HEADSET -- Light headphones with titanium memory metal design so you aren't weighed down USE WITH YOUR ACTIVE LIFE -- Rugged, sealed design protects the electronics, so you can use it without worry when you're active WEAR RAIN OR SHINE -- Water resistant MoisturePel technology repels water and sweat