JahyShow Dual USB 3.1 Amp Charger and Voltmeter Panel Mount for Marine 12 V Motorcycle Outlet Double Car Charger can Insert Into 1 port 4 Cellphone Tablet Pc Charger at 1 Times(Black) Fit for: Universal for 12-24V motorcycle motor vehicles.Package includes: 1x Cigarette Lighter Socket + 1x Dual USB Port Charger Adapter + 4 screws The unit can be connected to any 12-24 volt DC electrical system,Universal fits for 12V Vehicle, Motorcycle, ATV, Boat, Car or Marine. Two USB auxiliary sleeve is ideal for driving and / or iPod / MP3 player, USB charging portable devices, GPS, iPhone, And other similar devices,Can be used as GPS charging, cell phone charger, Car MP3 power supply, car vacuum cleaner, car tire inflation power, etc. Easy to install, 5v the output port to keep your smart phone, GPS, MP3 or other doo-dad blocked it with a waterproof cover elements,Accept two USB devices in the same time with the dual USB adapter.