HOCO E1 Business Bluetooth Headset(50mAh) 1. Material: ABS; 2. Bluetooth version: 4.1, Bluetooth chip: Chuangjie; 3. Battery capacity: 55mAh;Music duration: 3 hours; 4. Standby time: 55 hours;Charging time: 1.5 hours; 5. Languages supported: Chinese, English, French and Spanish