a palm sized “5000 mAh” qi wireless charging power bank with magsafe. the thing has an aluminium bottom case with the top of the case above the coil, magnets and main PCB being made from clear plastic. You can see all the insides, and they went to the effort of adding decorative but functional looking traces to the PCB. The PCB uses a black substrate material with clear solder mask, and gold plating under the solder mask.