The Silverback1 power bank is super sturdy with a whooping capacity of 50000mAh which can provide you over a week of charge to your many devices. It's not just the high capacity that makes this power bank unique but it's 22.5W super fast charging speed, this will juice up your drained devices from 0-50% in just 30 minutes, thanks to its QC3.0 and PD3.0 embedded technology. Its multi-function screen allows you to accurately determine what voltage and wattage your device is charging, with an input/output Type-C PD port, your PD-enabled devices can enjoy the advantages of power delivery. It has a portable lanyard that can be used to hold the power bank conveniently.