The MalletKAT is a musical instrument in a class of MIDI percussion controllers which also includes the DrumKAT, DK10, and TrapKat.
The Control Surface is a velocity-sensitive gum-rubber pad that has force-sensing resistors (FSR) which detect and convert mechanical energy into electrical signals.
Neil Peart, the drummer from the rock band Rush, used a MalletKAT Express.
The Controller's FSR technology allows it to be extremely sensitive to any touch, and can recognize damping,[1] tapping, etc.
They can then use pads marked "Increment," "Decrement," "Forward," and "Backward" to change settings.