DescriptionWhether you are at home, on the road, or any remote location, you can trust portable and backup power solutions, for the traveler on-the-go to keep your important devices powered up. Sturdy material, stand up to all kinds of severe environment, protect the internal components.Features-Color: Blue. -Material: Aluminum-magnesium alloy, electronic, rubber. -Size: About 19.50X10.50X6.80cm/7.66X4.13X2.67in. -Peak power: 4000W. -Continuous power: 300W. -Digital input/output voltage. -Input voltage: 12V. -Output voltage: 220VAC. -4 USB output: 5VDC / 2.1A. -No-load current: 0.5A. - Safe charging design and cooling fan prevents the car power converter from over-heat, saving power and energy.- Over voltage, overload, over-current, short circuiting, under-voltage, overheating, short circuit protection. - AC outlet and usb ports can offer fast charging for mobile phones and laptops, etc. - Lightweight design and superior quality. It can be as an emergency power supply. - Easy solution to your troubles. Provide you with more considerate design and service.