Roland KD7 kick trigger unit

The Roland KD7 kick trigger unit is a drum trigger device that is used to trigger sounds from an electronic drum kit. It is designed to be used with Roland's TD-series electronic drum kits, and is compatible with most other electronic drum kits. It works by sensing the impact of the kick drum pedal and sending a signal to the drum module, which then triggers the sound. The KD7 has several features, including adjustable sensitivity, adjustable threshold, and a built-in mute switch. It also has a built-in LED indicator to show when the trigger is active. Many professional drummers have used the Roland KD7, including Dave Grohl, Travis Barker, and Chad Smith.