JOYO PXL8 PRO 8 LOOP PROGRAMABLE EFFECTS LOOPER SWITCHING SYSTEM BLACK CASING UPGRADED VERSION WITH AMP SWITCHING MODE! .Total 8 LOOP channels, but can be used as dual independent 4-channel setting. Built-in 4 triggers enable you to use them to switch the Amp channel or effects mode settings Four triggers can be set separately for trigger polarity, mode and action status (including the settings under BYPASS) Tuner interface. Independent mute switch for keeping mute or tuning.