Yamaha DTX502 Drum Trigger ModuleThe DTX502 module is perfect for use in a ‘hybrid’ kit with your acoustic drum hardware, and can be expanded with four additional pads or triggers. Pad upgrades let you build your dream kit as your skills improve. USB connectivity lets you connect to a PC.Wave Import FeatureYour original WAVE can be imported. Up to 12sec (sampling rate 44.1kHz, 16bit, mono) , 20 files (NOTES: The internal memory of DTX502 is also shared by external MIDI file, if you load for example "Song Beat" data, as well your original WAVE file. )Practice Functions With ScoringNew drum training functions are included to challenge you no matter your current skill level every time you practice. Working with these tools will help you improve the most important skills for drumming from rhythmic timing to pad accuracy and endurance. The system will even generate a score so you can track your progress as you improve. Features:New kits & songs ErP compliant USB to Host 8 training programs Suitable for Hybrid/Hardware Kit Kit/Song/Wave import function