1.Portable power station 2.Charger for device 3.Various digital products 4.For iphone,ipad,DVD,etc ... 2-4 times with 5000mah2. Strong Compatibility: Double USB output is suitable for Smartphone, tablet PC ... efficiently. 4. Slim & Fashion Appearance: Appearance combines with elegant, slim, curve and straight line, surface ... 5000mah portable usb charger power station for laptop with long battery life