The Simmons ST1 Acoustic Drum Trigger mounts easily to most acoustic drums enabling you to activate sounds from your drum module. Designed with a high quality piezo sensor, the ST1 picks up the player’s drum strikes, translates them to electronic signals and routes them to most drum sound modules with a standard ¼ in. jack cable. The ST1 is engineered for quick, easy and sturdy mounting on most standard drum head tension rods, and the sturdy nylon structure will withstand years of use.