just looking through john pye auction site and came across these, anyone know what they are or what they do , do they work in mh?
http://www.auction-solutions.co.uk/lot_list.asp?saleid=3408&siteid=1&h=0&pageno=17
http://www.auction-solutions.co.uk/lot_list.asp?saleid=3408&siteid=1&h=0&pageno=17