Multi Currency is a bespoke feature that allows a website to display and sell products in more than one currency. If your site attracts shoppers from more than one country a multi-currency feature is highly recommended.
With a multi-currency feature, exchange rates are automatically updated each day so are as accurate as possible. When the currency is changed for the site, the shopper can see all of the search results, category pages and product listings in the new currency.
Multi-currency is an highly effective and shopper friendly way of having a site selling to more than one country.