From Manufacturer
The Yamaha DTX502 Electronic Drum Trigger Module for DTX522/32/42/62K Drum Kits provides you with the necessary connections, tools, and sound library for controlling the electronic drum pads of a Yamaha DTX522K, DTX532K, DTX542K, or DTX562K electronic drum kit. The module contains over 250 sounds, which is approximately twice that of the previous version. Additionally, you can import your own audio and MIDI samples for a high level of customization. The trigger module is tuned using a laser analysis of different drum strokes to produce a more natural playing experience.
For practice, the unit comes included with eight pre-programmed routines that help you improve your rhythm, timing, accuracy, and endurance. After each routine the system provides you with a score to help you keep track of your progress over time. You can also use the trigger module and your preferred electronic drum pads with an acoustic kit to create a hybrid acoustic-electronic kit. You can mount the drum trigger module to your acoustic hardware using a standard multi-clamp.