|At the heart of the Debut Kit is the feature-packed sound module. The included sound module features 10 classic and modern sounding drum kit presets, custom designed by Alesis. These kits contain 120 individual drum sounds and utilize Intelligent Dynamic Articulation™ technology to provide incredibly realistic sound and playability. The sound module can be connected to an external sound system or amplifier such as the Alesis Strike Amp 8 (sold separately) using stereo ¼" outputs, or you can plug in your headphones for truly quiet and private practice. The Debut Kit’s sound module also features an integrated drum coach, including 30 play-along tracks, as well as specially designed rhythmic exercises to help build and improve your skills. Plus, there is an ⅛" aux input that enables you to jam out to your favorite tunes from your phone or tablet.