A Porch Board is a Bass Drum simulator you Tap on. Im assuming you know this as they are not super common. This one is simple. Its a piezo Mikrophone in a stomp box. It can as a Rectangular Metal Box with output. I cut it on an angle added some soft material to the top, Im not sure why I put gaffers tape on the bottom but I think to dampen it even further. It sounds good with an EQ. and a bass amp or PA. This is not a sophisticated piece of equipment. But I paid 0 for it. It works....