Mpow Wolverine Wireless Bluetooth 4.1 Sport Headphones headsets with Mic for Running for iPhone 6s 6 plus 5s 5, Samsung Galaxy S6 Edge S5, etc-Silver Type: Bluetooth Headset Ear Coupling: In the Ear Talk Time: Up to 8 hours Music Time: Up to 8 hours Standby Time: up to 175 hours Bluetooth Version: 4.1