As i said i have Humminbird PirannaMax160 portable. It's nice unit, i got it from another OFC user, it came with suction cup which is really handy for camping and boat renting. Only one thing you need for ice fishing - it's iceducer(tranducer), in my case it pretty much costs same as fishfinder itself. That is the reason i started that topic. I really like Lowrance x76c ice mashine which can be used during summer as well, but you will have to get another tranducer for it as well.