Zebranalogic Envelope Filter Pedal This is the uncontrollable filter, which has controls for sens, gain, decay and range. This pedal is best used for solos, brilliants or when you want you amp to sound as if it had an internal bomb in it.The micro envelope filter is a unit that can be used with a guitar, bass or keyboard.It has the two following controls: Sens and RangeSens: determines the input level signal of your instrument. The input already includes an internal gain that allows your guitar to respond easily to the filter.Range: this control determines the frequency level with a range of lows and high."Features: Hand wiredTrue BypassDC Power, 2.1 mmInternational Buyers – Please Note:• Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility.• Please check with your country’s customs office to determine what these additional costs will be prior to looking/buying.• These charges are normally collected by the delivering freight (shipping) company or when you pick the item up – do not confuse them for additional shipping charges.• We do not mark merchandise values below value or mark items as ‘gifts’ - US and International government regulations prohibit such behavior. _gsrx_vers_418 (GS 6.0.6 (418))