The MOOER GROOVE LOOP brings together both the MICRO LOOPER and MICRO DRUMMER into one micro pedal, for the ultimate in a portable jamming companion. Both elements can be used independently from one and other or simultaneously. When used simultaneously the looper will be automatically synchronised to keep in time with the drum groove youve selected and an intro click will be played when recording the first loop to ensure youre in time with the groove. Features: Micro looper and drum machine in one pedal. 8 drum groove styles with 2 variations of each, 16 drum grooves in total. 3 different modes: LOOPER, DRUM, LOOPER #43; DRUM. Independent playback level controls for LOOPER and DRUM. Tap tempo button makes adjusting the groove speed very easy. Specifications: Material: Metal Max. Recording Time: 20 minutes Max. Number of Recordings: unlimited Sampling Rate: 44.1KHz Sampling Accuracy: 16bit Signal Input: 1/4Monaural Jack (impedance: 1M Ohms) Signal Output: 1/4Monaural Jack (impedance: 1K Ohms) Power Supply: DC 9V adapter (center minus plug)(not included) Item Size: Approx. 3.5 * 9 * 3cm / 1.4 * 3.5 * 1.2in Item Weight: Approx. 150g / 5.3oz Package Size: 10.5 * 6 * 4.5cm / 4.1 * 2.4 * 1.8in Package Weight: 185g / 6.5oz Note: The power adapter is not included. Please use the power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly. Package List: 1 * Effect Pedal 1 * User Manual(English Chinese)