Whirlwind MLTSELAMPRO4XR Multi selector Amplifier Footswitch for MLTSELAMP For use with Multiselector Amp Rack unit The optional MultiSelector Remote ?stomp box? style footswitch contains four switches that remotely control the switching functions of the Multiselector Amp rack mount unit using a regular 3-pin XLR microphone cable. A unique, proprietary communication protocol ensures reliable switching with mic cables up to 50 feet long. The Rack mount unit that this works in conjunction with is also sold here in our store called MLTSELAMP. Sold and shipped by Authorized Whirlwind Dealer Echotone Music LLC is an experienced E-commerce Audio Visual Equipment dealer since 1998. We take pride in selling Pro Audio gear for musicians, sound engineers, production companies and broadcast applications. Shipping -Pro packed shipped USPS, UPS or Freight Service. Contact us pay for 2 day air upgrade on any unit. We are working hard to get your product ( built if needed), processed shipped. Processing times vary, 2-30 days Returns/Refunds- Customer pays for return shipping. Returned items must be sealed/unopened to qualify for a full refund. Refunds are for the Item cost only. Gear returned with out all its original packaging, accessories or shows signs of wear, is subject to an additional service fee. This item is now used and it would be unfair to resell to another customer as new. What products can not be returned? - International Sales Clearance items, Custom Builds, Road Cases, DT12 items, items identified as non-returnable, discontinued items, used or NOS items, electronic software downloads, demo gear, computer Cards, vacuum tubes, earbuds, harmonicas raw-frame speakers, turntable cartridges, fog fluid