The design inspiration is from plolaoid card camera, which integrates the camera element into appearance of the powerbank, modem and stylish.
0.5C: C is for high rate capacity. The current of 10000 mAh capacity and 0.5C rate is 0.5*10000=5A, the power is 5A*3.8V=19W>18W.
Support Multiple Fast Charging Protocols : It supports multiple fast charging protocols like PD 3.0 PPS, QC3.0, QC2.0, FCP, AFC etc., which is available to charge for iPhone, HUAWEI, SAMSUNG, and other phones that support QC fast charge.