Keeps your smartphones and tablets charged while traveling. Plugs into a cigarette-lighter receptacle. Quadruple USB port can charge up to 4 devices at once. LED display confirms whether your device is connected properly. Sleek design. Detects the input current of connected devices to maximize compatibility and charging speed. Suitable for most USB-powered devices. Maximum overall output: 5.2A. Product dimensions: 1”x2”x3”.