The flash module is pretty straightforward - simply attach it to the flash shoe, pop it up and away you go. There's no buttons, no settings and no physical adjustments that can be made to the flash other than popping it up and down. This flash has a guide number of 8 meters when used at ISO 100. To make off-camera travel easy, there's a small plastic case included for the flash as well.
The flash shoe on top of the NX200 is compatible with much more than just the included flash. Samsung has a variety of higher power flashes on the market to better suit all your flash photography needs.