The active holder charges your LG G4 when it is in the holder. If you have a car with USB interface, you can disconnect the cig-plug from the holder's cable in order to get a USB-cable to connect directly to the USB connector in your vehicle. This holder does not fit devices with leather back cover.
The holder is attached onto a tilt swivel and can be adjusted in order to avoid light reflection. Connects to the vehicle's cigarette lighter socket, 12 Volt. Attach onto a ProClip mounting platform.