12v car motorcycle mobile phone charger abs dual usb met switch 24v rv boat charger + voltometer

characteristics: 1. dual usb output, easy to use, plug and load, always on standby. 2. dual usb sockets for your trip, and the problem of power failure of mobile devices at any time. three. non-flammable, good toughness, high density and good water-tight performance. description: equipped with a charging switch, you must set the switch to use it. specifications: color: black material: abs input voltage: 10-24v output parameters: 5v/3.4a package included: 1 *charger + voltmeter remar