The affordable new ME-25 is packed with powerful BOSS features to make you sound like a pro, yet it�s as fun and easy to use as a stompbox. The built-in SOUND LIBRARY gives you instant access to dozens of classic and modern effects. Simply choose a category, select a variation, and play. Customize your sound with simple twists of the Drive, Tone, and Volume knobs. With COSM amp models onboard, plus Super Stack and Phrase Loop, the ME-25 is a dream processor for upstart guitarists who want great sound and ease of use.