IRIN RS-19 Electric Guitar Effect Talent Octave Effect Pedal True Bypass Mini Single Guitar Pedal Guitar Accessories & Parts It is feasible to create 3 separate sounds, 1 octave lower, 2 octaves lower with 1 octave higher, and 1 adjustable embellishment, so that with just one guitar, three octaves could be played, and every tone has a separate volume control Specifications Dimensions:92*49*46mm Weight:160g Input Impedance:340KΩ Output Impedance:290Ω Working Voltage:DC9V(center minus) Rated current consumption:10mA Packing list: 1 * Guitar Effect Pedal 1 * Plug(optional) 1 * Audio Cables(optional)