Killer envelope filter from the guys at EHX. I just don't use it enough to justify keeping it on my board. Details here: http://www.ehx.com/products/micro-q-tron I never used it outside my music room. Near mint condition with box and pamphlet. No velcro or anything on bottom of the pedal. I'll get some pictures up tonight. $70 Shipped CONUS. Paypal A-OK!