Styker iSwitch Footswitch 277-100-100.  It is wireless, takes 4 C batteries.  Does come with a battery pack 277-300-100.  I do not know the life of the batteries.  In good cosmetic condition.  Please look closely at pictures.   Item is sold as described. We pack and ship your item no later than the next day.  33A

Over 25 years selling on eBay! We specialize in medical, lab, electronics and sometimes some odd equipment! We do our best to accurately describe the item. We are honest in our listings, we ask that you read the ad and ask questions. We rarely answer questions on weekends and during holidays, we will reply first thing next business day. Dan Batson, DGD Inc