The Roland TD20 V-Drum sound module is a professional-grade drum sound module designed for use with electronic drum kits. It is used by professional drummers and producers in the studio and on stage. It features a wide range of sounds, including acoustic and electronic drum kits, percussion instruments, and sound effects. The TD20 also features a variety of effects, including reverb, delay, and EQ. It also has a built-in sequencer and a USB port for connecting to a computer. The TD20 is capable of producing realistic drum sounds and is highly customizable, allowing users to create their own unique sounds.