YiHi SX mini ML Class & SXi-Q Control - http://www.vapetime.co.uk A quick overview & userguide for the ML Class by YiHi including the SXi-Q Control PC interface. If you have any questions please do not hesitate to call, contact us or leave a comment. We are always happy to help :) For more information, please visit: http://www.vapetime.co.uk/sx-mini-ml-class/