The FLY 3 is an innovative, state-of-the-art 3-watt mini amplifier that combines two channels, tape delay, and Blackstar's patented Infinite Shape Feature (ISF) to create the perfect compact and portable guitar amplifier. It is advantageously small and packs a big sound even at the lowest volumes. With the ISF, you can continuously modify the sound of your FLY 3, offering you endless possibilities for shaping your amplifier's tone. The FLY 3 also features tape delay effects, allowing you to enhance your amplifier's output while playing. It has a built-in MP3/LINE IN jack, so you can connect your MP3 player, phone, laptop, or tablet and jam along to your favorite tracks; the Emulated Output jack can also be used with headphones. Since the FLY 3 is battery-powered, you can take it anywhere as a portable speaker set.