The single-piezo 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 1/4" 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.