This kit includes all the  components needed for building a sensitive sound trigger.  The SK2 uses a piezoelectric element that is sensitive to sharp sounds like claps, snaps, and bursts.  It can trigger on a finger snap from a distance of 10 feet. A photo of the trigger assembled on a breadboard is shown to the right.

When purchasing the kit with a breadboard, there is a $1.00 savings over buying a kit and breadboard separately.

If you're also purchasing an Electronic Delay Kit (DU), there is a $1.00 savings over buying the two kits individually.  In that case, jump to this page to order.