Check the listing for details. Roland RT-30HR Acoustic Drum Trigger. Condition: New. Listed at 135.85 USD. With the drum triggers Roland RT-30 Series, acoustic drum sets can be expanded with the possibilities of electronics. Exceptional trigger sensitivity, super fast installation and compatibility with all common e-drum modules set new standards for anyone who wants to discover the world of hybrid drumming. Ideal for use on the snare, the RT-30HR supports both hits on the head and on the rim, which means that two different sounds can be controlled. The dual trigger RT-30HR can be easily attached to the hoop of the tom or snare. The newly developed fastening device automatically places the sensor in the best position of the acoustic head. All of our items have a 30-day return policy without explanation. Sheet music, reading material and software cannot be exchanged. The General Terms and Condit.