Easy triggers compatable w/ any drum module on the market.

1) Go to r Shack and buy a Piezo Speaker Element and a mono 1/4" phone jack (female). (about $3 total)

2) Ea PSE should be housed in a small black plastic cylinder about 2.5" dia and .5" deep. Remove the PSE without destroying it. It's easy, you'll see.

3) Attach the two wires on the PSE to the leads on the mono jack. BAM!!!!! You'll then have a trigger equal to that of any trigger on the market.

You'll then be able to trigger card board if you want.

I used this technology on a Kieffa KP-10. It works better than a RO-V.