The WC-1 is a one-year pro membership and a wireless adapter from Roland. Roland is known for their innovative and high-quality audio products. This membership gives you access to an enormous selection of different sounds and expansions, which includes over 30,000 different sounds and new sounds and options are also regularly added. The only requirements for this membership is that you have access to a smartphone (iOS or Android), Wi-Fi, and a supported Roland instrument. The wireless adapter can be connected to your Roland instrument and controlled with the Roland app, with which you can try out many different options and functions. If you find something you like, you can easily download it to your instrument. The adapter can be wirelessly connected to your phone via Wi-Fi. When you have enjoyed your membership for a year, you are given the option to renew the membership, to not renew your membership, or the scale down so you can still have access to your favourite sounds and expansions.