This PowerVault II has a 10,000 mAh capacity. It comes with 2 cables, a Micro-USB connector and a free additional connector (lightning connector). Additional USB output for fast charging (USB Type C). To check the remaining capacity, push button to show remaining capacity. Soft rubber coating nice to the touch. Li-Polymer cells to allow it to be lighter and thinner. Easy for traveling (hiking, cycling). Mobile phone can be fully charged 4-5 times. Most usage is phone charging for our smaller models, our larger ones are good for traveling. You can plug it in anywhere without needing to charge. For maximum life, the device trickle charges and is memory free. .