Yamaha KU100 Electronic Kick Controllerhe KU100 is a silent kick unit that can sense your playing dynamics. This unit is designed to reduce the physical sound of playing the bass drum and especially the vibration to downstairs spaces when you are playing above others. Specifications Dimensions: (W x H x D) 98 mm x 115 mm x 310 mm Weight: 1. 3 kg *Before you purchase a pad, refer to the pad compatibility table to make sure that you can connect the pad to your drum trigger module (tone