Yamaha DTX Drum Trigger Module 2.0, a drum trigger module perfect for music production. - Model: DTX Drum Trigger Module 2.0 - Brand: Yamaha - Included: Sony G1 (included) Thank you for viewing. This is a set of three items, all junk. If you think you can find a use for them, please consider purchasing. I don't think they'll be of much use, but they might look nice as decoration.