MXR M133 Micro Amp Gain / Boost PedalThe Micro Amp allows you to boost your signal with a preset amount of gain up to +26dB. This pedal can be powered by a 9 volt battery, a Dunlop ECB003 9 volt adapter, or the DC Brick, Iso Brick, and Mini Iso Brick power supplies (not included). Footswitch toggles amp on bypass Red LED indicates "on" Gain knob adjusts total output volume when micro amp is engaged Power: Single 9 volt battery or Dunlop ECB 003 AC adapter (sold separately) Tough, compact
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