Magellan has announced the launch of the Maestro 4700 GPS device.

Described as ultra-slim, the device features a 4.7-inch colour touchscreen, voice command capabilities and hands-free Bluetooth calling.

A US launch at this stage, the 4700 offers a "OneTouch" favourites menu with twelve bookmarks for locations.

As far as the Bluetooth hook-up goes for phone calls, the unit features a noise-cancelling microphone.

Other features include predictive traffic, "Find Your Car" function with the pedestrian mode and 3D landmarks.

The suggested price in the States for the Magellan Maestro 4700 is $299.99, we'll bring you news on a UK launch when we hear it.