3 Channel, 1 watt High Gain FET Solid State Guitar Floor-Pedal/Amplifier with Switchable FX Loop, Volume Boost function, external 9v pedal power jack, 1/8´´ Stereo Media input, Headphone output,Speaker emulated XLR direct output with ground lift and external RGA-13 Power Supply included. Specs Wattage / Power 1 Watt @ 8 Channels 3 Speaker n/a Impedance Minimum 8 FX/GATE/REVERB External FX power & loop FOOTSWITCH 3 channels and Loop/Boost (Onboard) Dimensions (LxWxH in mm) 270x175x59 Weight (kg) 1,7 Weight (lbs) 3,8.