Roland BT-1 Bar Trigger PadThe BT 1 Bar Trigger Pad from Roland is a curved electronic drum trigger designed to be incorporated into acoustic and V Drum kits. It can be used to trigger a V Drums module or an SPD series percussion pad for a variety of functions including the start stop of loops and tracks, turning effects on and off, kit selection, and tap tempo functions. The BT 1 can be installed into your existing drum kit through a drum tension rod and the included