Amplifier Accessories by Blackstar. Details:Black star's FLY 3 is an innovative, 3 Watt, mini amp with big TONE. The patented ISF circuit gives you unlimited adjustment over the characteristics of your tone and takes you from the USA to the UK and anywhere in-between. This combines with the 'tape' delay to give you the best sounding, fun to play mini amp available. When connected to the FLY 103 cabinet it becomes a 6 Watt stereo amp for guitar or any music playback device. The FLY 3 can also be powered by batteries, enabling you the get 'the sound in your head' wherever you go!