Speed up your way to promotional success when you advertise with this Olive Neckband Headphones! The Sport Magnetic Headphones with Mic and build in recharger battery with 150 mAh capacity, battery life up to 15 hours playtime .Compatible with Android and iOS device!With an ergonomic in-ear design made it perfect for sport,and the built-in magnet gives this around the neck Bluetooth headphones a convenient storage way to carry around when your earbuds not in use. Suitable for gym, working out and running.