Features: 8W portable and powerful guitar amplifer with built-in guitar tuner. Adopts 32bit Dsp, 44.1kHz 24bit Ad/da converters and TS/AC(true simulation of analog circuit) technology. 8 different preamp sounds: Clean, Blues, Crunch, British, Classic, Solo, Metal, Flat. 4 modulation effects(Chorus, Flanger, Phaser Tremolo), delay and reverb effects can be used simultaneously. 3-band EQ (Bass, Middle, Treble); gain and volume control. With 6.35mm guitar input jack, 6.35mm headphone output jack, and 3.5mm AUX IN jack, ideal for practice and live performance. Dual power supply: DC 12V power adapter(included) or 6 * AA batteries(not included), suitable for indoor and outdoor use. With a top handle for conveniently transporting the guitar amplifier.