Features:Has 8 speaker cabinet model presets and each preset is also a memory spot that you can load your favorite IR(Impulse Response) files.Delivers the signal from input to output with ultra low latency(less than 2ms), in 24 bit 44.1KHz audio quality.1024 point 23ms sampling allows you to get a high resolution audio with a powerful speaker sound.LEVEL knob controls the output volume; SPACE knob adjusts the simulation of the speaker cabinet's room size.Can make any personal monitor speaker(full range flat response amps recommended) into any of your favorite amplifier.Specifications:Input: 1/4 inch monaural JackOutput: 1/4 inch monaural JackPower Supply: DC 9V AC adapter (center minus plug)(not included)Item Size: 4.2 * 9.2 * 3.5cm/ 1.7 * 3.6 * 1.4inItem Weight: 170g/ 6ozPackage Size: 11.5 * 6.5 * 7.5cm/ 4.5 * 2.6 * 3inPackage Weight: 265g/ 9.3ozNote:Power Adapter is not included.Please use the power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly.Package List:1 * Effect Pedal2 * Stickers1 * Users' Manual(English & Chinese)