How to buy MRT?

Hello there, could you please clarify the steps involved in purchasing MRT tokens? I'm interested in adding them to my portfolio but am unsure of the process. Is there a specific exchange or platform where MRT is listed for trading? Also, do I need to set up a wallet specifically for MRT, or can I use a multi-currency wallet? Lastly, what are the fees associated with buying MRT, and are there any other considerations I should keep in mind before making a purchase? Thanks for your help!