Waterproof Bluetooth Earphones I Need A GPS I Can Use In The Car And The Field, Waterproof, Touchscreen, With Google Maps, Wifi, Bluetooth...?

I need a GPS I can use in the car and the field, waterproof, touchscreen, with Google Maps, Wifi, bluetooth...? - waterproof bluetooth earphones

The Verizon-Droid what I want, but do not pay the phone bill. I want to be in a position to the cache of satellite imagery of Google Maps and information on how much of what you have on a computer. So I want on the street as you navigate a GPS, but I will not do in the United States alone, so I can load maps (there are many things online for free). You must insensitive to my visits. Ideas?