The Lenovo PB500 Powerbank is a high performance and quality product within 2 fast charge output for devices as Mobile phone, Tablet, etc It has large capacity of 10000mAh Features: Dual output USB interfaces Support 2 devices charge at one time Protective design of electronics- Prevent from over charging , over discharging or short circuit. Portable design & Light weighted 5V2A charge input 5V2A/5V1A output.