With amPlug 2 the crucial analog circuit has been drastically improved and each model now provides three modes. Guitar types provide multi-effect functionality and a rhythm function has been added to the bass type. A foldable plug mechanism that rotates 180 degrees and an auto power-off function are additional features that contribute significantly to improved convenience and ease of use. The amPlug is the simplest way to get serious sound; occupying virtually no space it s an ideal choice for any guitarist or bassist. Available Models: AC30 - provides the AC30 top boost sound Classic Rock - delivers the classic crunch of a UK-made 100W amp Metal - gives you the extreme high-gain sound of a U.S.-made amp Bass - designed specifically for low frequencies offering a wide-range response Clean - the ideal choice for fat boutique inspired clean sounds Blues - the authentic crunchy blues tone of a cranked tweed amp Lead - searing high gain lead tone that s perfect for solos Features: 3 Effects (Chorus Delay Reverb) Guitar Types w/ Multi-Effect Functionality Rhythm Function Added to the Bass Type Foldable Plug Mechanism Rotates 180 degrees Auto Power-Off Function Small Compact Design 11 hr Battery Life FX Rhythm On 17 hr Batter Life FX Rhythm Off 2 .