DD620BX offers the best folding mechanism digital drum in the market that allows easy transport and space efficient packing. DD620 provides special function to help beginners play better, notably the Auto Fill In (AFI), Double Bass Trigger (DBT) function and Coach function. With AFI, the drum kit intelligently adds a fill in according to the playing style with a tap on the AFI pad. As for DBT, the drum kit helps you play double trigger on the bass drum and eventually the coach function provides practicing methods to help you become a better drummer. DD620 is a great solution for gig performance, thanks to its foldability, and great drum learning companion at home, thanks the special functions designed for beginners.