Best Lowrance GPS Devices - 12 Channels Receiver type

'removable memory allows for almost unlimited storage of routes and other data'

'removable memory'

'It's nice to see features formerly found only in midrange GPS units available on bargain models, and the iWay 250c provides good bang for the buck.'

'Playlist management is fairly basic, though: You can select directory trees or even the entire partition to play or shuffle, but such advanced features as playing by artist, genre, and the like remain the province of dedicated MP3 players.'

'expandable memory'