Features: The Portable Desktop Drum Kits features built-in speakers that deliver powerful bass, simulating realistic percussion effects essential for both beginners and professionals. By using pedal control, it can simulate the real effect of stepping on a cymbals, with sound effects of closing the cymbals, opening the cymbals, and stepping on the pedal. The positions of the cymbals and snare drum can be interchanged to adapt to the player's hand habits, which can avoid the inconvenience of playing when the drum sticks crosses in the same plane. Double channel output, excellent sound effect. Earphone output allows for practice without disturbing others. The basic function of the built-in metronome is to train good senses of rhythm. Specifications: Component: Silicone Size: about 43.5x16.3cm/17.12x6.41inch Package Includes: 1set Electronic Drum note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.