The EAD10 can connect to a maximum of 6 triggers and pads including the bass drum trigger of the sensor unit. Percussion sounds, electronic sounds, and loops, among other things, can be incorporated to expand the range of expression.
Learn more about EAD10: https://www.yamaha.com/ead/
EAD10 Web Manual: https://manual.yamaha.com/mi/bo/ead10/