Features:Product integrated with a dual USB charger, digital Voltmeter, 12V outlet, waterproof panel, and 5 on/off toggle switches, this 12V/24V electrical panel can meet your various needs and widely applicable for most 12V-24V DC cars, UTVs/ATVs, trucks, trailers, RVs, caravans, buses, marine boats, yachts, airplanes, etc.Multi functional product, perfect for travel use,USB Charger and LED Volmeter with ON/OFF Power Switch,Easy to use and save energy.Real-Time LED Voltmeter - This switch panels for trucks with large digital voltmeter display that shows 6-30V voltage, you can monitor the condition of the battery on your car or boat that if the voltage is under normal status.This 12V USB socket is built-in dual USB charging ports, two ports output: 5V / 2.1A & 2.1A , suitable for cellphone tablet gps and more deivces.Waterproof dust proof material can be used for the interior and exterior application.Install in any 12V-24V motorbike, Boat, Riding mower, tractor or car.Apply to all USB charging mobile phones or other electronic products. Run multiple accessories at one time, very convenient and easy to use. Specifications:Item Type: Dual USB Adapter Charger + 12V Power Plug With LED Voltmeter and on off SwitchMaterial: ABS + Metal Housing Color: BlackLED Voltage Display: Blue/Red/Green (Optional)Panel Size: 1510.5cm(1) USB Charger: Operating voltage: 12V-24V Interface: 2 USBOutput: DC 5V 2.1AIndicator: Blue LED (2) Voltage Meter: Operating Range: DC 6-30V - Widely used with electric equipment for power supply: Vehicle,GPS, mobile phone, camera, mp3 Quantity: 1 Set (other accessories demo in the picture is not included) Note:1.Transition: 1cm=10mm=0.39inch2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you4.No retail package Package includes:1 X Dual USB Car Charger Power Socket LED Voltmeter Switch Panel