I lots of good comments about these. I will have to try one.
"Mustang™ I and II contain 24 highly accurate on-board amp presets with tones from vintage Fender® sparkle to outrageous modern metal distortion. Arranged in three banks of 8, all 24 amp presets are easily and instantly accessed right out of the box with only a twist of a single knob. Plug in and you’re up and running. Mustang™ I is a 20-watt amp with an 8” speaker. Mustang™ II rocks a little more horsepower—a 40-watt amp with a 12” speaker and a slightly larger cabinet.'