The Binatone B350 is a GPS receiver comes with the pre-installed maps of those areas in the United Kingdom. The map capabilities of this GPS receiver are further enhanced by its compatibility with data cards and map cartridges. With these map databases and with GPS guidance, this GPS receiver is capable of guiding the user to the desired destination accurately and efficiently. This automotive GPS receiver has a 3.5-inch (8.9 cm) LED touch-screen as the user interface. The other user interface of this Binatone GPS receiver is the voice command. The trip calculator on board this Binatone GPS receiver calculates shortest possible and fastest routes, recalculates routes, and displays points-of-interest. This automotive GPS receiver has notebook and Windows XP operating system compatibility. It has a JPEG image viewer and the user is directed through voice navigation instructions. The Binatone B350 works on a rechargeable Li-ion battery that lasts for four hours per charge. There is Bluetooth PC interface capability in this Binatone GPS receiver, and its expandability is achieved through a SD card slot.