Roland TM-1 Trigger Module[custom_html] Electronic Percussion Trigger Module with 15 Onboard Drum Kits, 2 Trigger Inputs, USB, and MIDI I O [ custom_html][video]https: www. youtube. com watch? v=Tm0VWVuYH00[ video] The Roland TM 1 Trigger Module makes combining electronic percussion elements with your acoustic drum kit easier than ever. With its incredibly user friendly interface, Roland's TM 1 Trigger Module lets you effortlessly augment your acoustic drums with electronic