The technically latest generation of ddrum is called DRT (Dual Redundant Triggers). The DRT Trigger provide two so-called Trigger Converter, which can be switched by a button. The Transducer of the DRT Trigger hardly presses on the Head, so that no undesired attenuation of the acoustic tone may arise. As every ddrum Pro Trigger, they have a robust metal casing. The same with the Snare Trigger which is Dual-Trigger -able, so Rim and Head are seperated.