BreaDeep Car Motorcycle Dual USB Charger DC12V Outlet Cigarette Lighter Socket Plug Digital Voltmeter Three Hole Panel Material: high quality nylon plastic socket body. Fits for 12V Vehicle, Motorcycle, ATV, Boat, Car or Marine. Comes with dust cover Heavy duty construction. 2 port USB socket charger,can indicate a poor or bad charging system. Tells whether your battery is holding a charge or not. Suitable for charging GPS, IPhone, IPod, Mobile Phones and other digital devices.