Roland TM-2 Drum Trigger Module Electronic Percussion Trigger Module With 100+ Onboard Sounds, Two Trigger Inputs, SDHC Card Slot, And MIDI I/O

Roland TM-1 Drum Trigger Module Electronic Percussion Trigger Module With 15 Onboard Drum Kits, 2 Trigger Inputs, USB, And MIDI I/O

Roland TM-2 - Trigger Module

Roland TM-2 Acoustic Drum Trigger Module 2 Inputs