Check the listing for details. ddrum DDTi Drum Trigger Interface. Condition: New. Listed at 239.00 USD. The ddrum DDTi is a simple electronic percussion interface designed to capture the feel of a real drum performance. The DDTi converts input from your favorite percussion pads or drum triggers to MIDI note messages you can use to trigger sounds in software or hardware. It even supports full hi-hat control for extremely realistic expression. Featuring both 5-pin MIDI and USB connectivity, the DDTi connects to your computer, synths, or drum modules. Get the feel of real drums and the convenience and functionality of a trigger with the ddrum DDTi drum trigger interface.