Best GPS Devices - MP3 Player Special Features, Handheld Form Factor, 3584 to 40000 MB Built in memory

'The 42 channel GPS receiver is WAAS enabled for greater accuracy.'

'Dedicated buttons make it easier (and safer) to adjust the volume while driving.'

'The GPS clips onto the mount with ease and is removable with one button for secure storage when you're parked.'

'Dedicated buttons make it easier (and safer) to adjust the volume while driving.'

'The GPS clips onto the mount with ease and is removable with one button for secure storage when you're parked.'

'removable memory'

'most up-to-date street maps'

'features include a smart volume function where the volume automatically adjusts to your current speed'

'Location based services are extending this concept to detecting other person’s willing to “shareâ€e their location information.'