The MOOER GROOVE LOOP combines both the MICRO LOOPER and MICRO DRUMMER into one micro pedal, making it the ultimate portable jamming companion. Both elements can be used independently or simultaneously. When used together, the looper automatically synchronizes to the tempo of the selected drum groove, and an intro click is played when recording the first loop to ensure you're in time with the groove. Features: Micro looper and drum machine in one pedal. 8 drum grooves with 2 variations each, totaling 16 drum grooves. 3 different modes: LOOPER, DRUM, LOOPER + DRUM. Independent playback level controls for LOOPER and DRUM. Tap tempo button makes it easy to adjust the groove speed. Specifications: Material: metal Max. Recording time: 20 minutes Max. Number of recordings: unlimited Sampling rate: 44.1KHz Sampling accuracy: 16 bit Signal input: 1/4″ mono jack (impedance: 1M ohm) Signal output: 1/4″ mono jack (impedance: 1K ohm) Power: DC 9V adapter (center minus plug) (not included) Item size: Approx. 3.5 * 9 * 3 cm / 1.4 * 3.5 * 1.2 inches Item weight: Approx. 150 g / 5.3 oz Package size: 10.5 * 6 * 4.5 cm / 4.1 * 2.4 * 1.8 inches Package weight: 185 g / 6.5 oz Note: 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