Bolt-20Pro is engineered to be the ideal portable power bank for multiple devices. This high capacity 20000mAh power bank ensures faster and smarter charging, through the dual USB output ports and a USB-C input/output port. The built-in multi-protection system combines high-voltage protection, over-current protection, over-charging protection, and more to ensure safe charging for all your connected devices. The smart LCD screen keeps you informed on the charge left on your power bank.