Yoobao en1 42000mah Pd fast-charging power station large capacity inverter for outdoor use with led backlight. The USB-C interface has a 30W PD two-way fast charging capability which means in addition to charging devices such as laptops it can also be used to power the device itself. The fast charge capability saves half the time to charge devices like your MacBook. As if not enough the power station has multiple inputs charging options. In addition to the charging function it has an illumination LED light ring with SOS light mode which comes in handy should you need to send a distress light signal when stranded outdoors. It is also equipped with a digital display unit which makes it easy to keep track of how much power is left and how soon you need to recharge it.