The universal external battery "Reserve Pro" features a reliable class "A" lithium-polymer battery with a capacity of 10000 mAh and dimensions smaller than a modern smartphone. The body is made of high-quality ABS plastic with a soft-touch anti-slip coating. Inside the body, there are three of the most popular input ports (USB Type C, micro USB, Lightning), which means you can use one cable for charging the power bank and your smartphone. The USB-C port also functions as an output, allowing the power bank to charge up to 2 devices simultaneously. Included in the package are micro USB, Lightning, and symmetrical USB-C to USB-C cables. The multi-level protection system guards against voltage spikes, short circuits, overheating, and overcharging.