ZOOM G1x Guitar Effects Pedal Effect Types: 54 Effect Modules: 9 Maximum Simultaneous Effects: 9 Patch Memory: User 40+Preset 40, Total 80 Sampling Frequency: 96kHz A/D Conversion: 24-bit, 64times over-sampling D/A Conversion: 24-bit, 128times over-sampling Input: 1/4" phone jack(Rated input level: -20dBm, Input impedance:&gt; 1Mohm) Output(Line / headphones combined) : 1/4" stereo phone jack(Maximum output Control Input: Expression pedal, Foot switch USB: Type B(Based on USB1.1) Display: 2digit 7segment LED display, Parameter LED, Pedal assign LED Power Requirements: AA size(LR6)battery x 4(Optional), or AC adaptor DC9V/300mA/ Center minus type(Optional, AD-0006 recommended) Battery Life: 7.5hours(with alkaline batteries)