Features: Multi-effects pedal integrated with tuner, delay, distortion, overdrive modules and tap tempo function, all in one solution for the professional guitarist on the go. A built-in parallel effects loop that sits between the DIST module and the DELAY module makes it easy to expanding your favorite stompboxes flexibility or connect to amplifiers using the 4 cable method, easy integration with all different kinds of equipment. The PHONES output with built-in cab sim for home practice or DI connection with PA and recording equipment. Has a fully integrated accurate guitar tuner with LED display to ensure your instrument is always in tune. Press and release the TAP foot switch you can create a Tap Tempo. The digital DELAY module has 3 different kinds of delay: TAPE(resembles the classic tape units of the 70\'s), ECHO(resembles the magnetic drum delays of the 60\'s), ANALOG(resembles a classic BB style delay stompbox). The DIST module has clarity and bite, instant attack and a wide gain range. Perfect for classic rock/ metal or high gain solos. The DRIVE module has a wide gain range, pronounced mid hump, dynamic compressing and a natural feel. Control knobs for corresponding modules: -TAP Press and release this TAP foot switch several times to create a Tap Tempo. Tap tempo can control the DELAY time. Press and hold theTAP foot switch to mute your output and activate the accurate built-in tuner. Press the TAP foot switch once to exit the tuner and un-mute your output. --DELAY module LEVEL-- adjusts the volume of the DELAY repeats; TIME-- adjusts the DELAY time; F.B-- adjusts the number of repeats; Toggle Switch -- select the DELAY type. --DIST module VOL-- adjusts the output level; GAIN-- adjusts the amount of distortion; TONE-- adjusts the EQ; HP/LP-- selects between High Power and Low Power --DRIVE module VOL-- adjusts the output level; GAIN-- adjusts the amount of overdrive saturation; TONE-- adjusts the EQ; HOT/Warm-- affects the headroom dynamic, saturation and compression.