Mooer product info: EXPLINE is a micro sized expression pedal which houses high quality electrical components, ensuringsmooth a precise control at all times.    Features: -Output 1 and Output 2 are wired differently from one and other to ensure good operation with equipment from many different brands. Try both outputs to find which renders the best results.  -Please connect the designated AC adapter to an AC outlet of the correct voltage. Please be sure to use only an AC adapter which supplies 9V DC center.  -Built using high quality components that provides smooth and precise control at all time.    Specification: Power:9V DC centre pin negative.Recommend Mooer Micro Power;  Power consumption:35mA;  Dimensions:128mm(D) x 55mm(W) x 48mm(H);  Weight:560g;    Package Included: 1 * Effect Pedal;  1 * User Manual(English & Chinese)