I have a bottomline 480 max that I`m getting rid of.I got it a few months ago and I thought I`d give it a try but I prefer my old lowrance instead.Here`s a link to the specs and reviews of the unit http://www.cabelas.com/prod-1/0023861016813a.shtml
$50.00 is what I want for it,if I need to ship it add $10.00. thx Bill