It is easy to use. Connect the clamps to your bikes battery terminals, then plug in the battery pack and start your bike.
You can also use it to charger your phone with the included USB lead. It has both Apple Lightning Connector and Micro USB, if you break down and your phone is low on battery, you now have piece of mind that you can call for help.
Also built into the Battery Pack is a multi-function LED light. The light can be used as a torch, or for attracting attention with its Strobe Effect or SOS Signal.
The Battery Pack has 4 inbuilt indicator LED's to display the State of Charge of the battery.