Roland BT-1 Electronic Drum Single-Trigger Pad (BT-1)Compact and reliable single-trigger padCurved shape for mounting on a V-Pad or acoustic drumQuick and easy mounting through a drum tension rod; attachment parts for standard rod-type mounts includedInternal design eliminates false triggering while playing surrounding drums and/or padsUse with a V-Drums module or SPD-series percussion pad to trigger sounds and control functions such as start/stop of backing songs and phrase loops, effects on/off, kit selection, tap tempo, and more