The Silent Hill Box has a contact mic built innovative a long 14” audio cable cord, with a volume control and an output to amp all 1/4” jacks, with volume control also an additional input with a built in echo delay this delay goes from off to a full glitch out and infinite feedback. It starts at a nice reverb effect and move on as you turn the knobs into longer times delays. The built in speaker is 3” and is on at all times this with the built in contact mic gives feedback oscillations they can be used to create drone like effects. There are two Led lights in a resin sphere that react to the contact mic and the to the over all output. There are touch points that have a classic crackle box like effect very loud and sensitive. ... https://www.youtube.com/watch?v=I3MTAe8XW44