SuperNATURAL PoweredDerived from the flagship TD-30’s SuperNATURAL concept, the TD-15 also provides a complete and natural drumming experience when played with V-Tour series pads. Thanks to Behavior Modeling Technology, the response becomes much more precise and faster, and the ambience enhances the sounds more realistically — all of which were difficult to realize with the previous sound module.Behavior Modeling TechnologyBeyond the physical modeling of instruments, Roland goes a step further by modeling the instrument’s distinctive behavior and how it responds to the performer, resulting in natural, expressive sounds that evolve organically in realtime.Internal Songs and Song PlayerThe TD-15 is equipped with realistic and powerful onboard backing songs and loop phrases, which are perfect for practicing as well as for the pure enjoyment of playing along. With a USB flash drive connected to the module, you can play back audio files (WAV, MP3) directly from the USB flash drive. You can mix the balance of your drumming with the backing track, change the tempo of the song with the Speed Control, loop specific sections with A-B repeat, and take your practice sessions to a new level.Advanced Practice ToolsRoland’s highly acclaimed Coach Mode is onboard the TD-15, including Time Check, Quiet Count, and Warm Ups — a full set of exercises for self-improvement. In addition, QUICK REC lets you easily record and play back your own performance. This is a convenient way to repeatedly record yourself practicing and evaluate your performance.Computer CompatibilityBy connecting the TD-15 to your computer with a single USB cable, you can transmit audio and MIDI data. It’s a simple, convenient method for interfacing with the DT-1 V-Drums Tutor, V-Drums Friend Jam, and/or your favorite DAW software.