At the history nokia has launched many navigation devices. this one is their latest one with many more features.The N500 boasts a 4.3-inch color touch-screen display and a built-in speaker for giving turn-by-turn voice guidance; the system also features text-to-speech technology for reading out the names of individual streets. An integrated FM transmitter allows drivers to stream spoken directions via their car speakers. Being a Nokia device, the N500 naturally comes with cell phone compatibility and can be used as a hands-free Bluetooth calling device.