Harmon Kardon's new pocket sized device combines a navigation system for the whole of Western Europe with an MP3 player and video player but is small enough to fit in the palm of your hand.

The Guide + Play offers a 4-inch 480 x 272 resolution touchscreen, 2D and 3D maps pre-loaded on its 2GB internal memory, and unusually, gives you large map views at the touch of a button. Traffic Message Channel info and speed camera warnings are included.

The navigation abilities and multimedia features work together, ensuring that important information is audible and displayed, even when you're playing music.

You can browse your music by song, artist, album, genre or playlist and watch MPEG4 and WMV 9 movies. The Guide + Play supports MTP and Windows Media DRM 10 - video and audio files are converted and transferred using Windows Media Player meaning you don't need to install additional software.

The Guide + Play comes complete with a fold-flat mount, a carrying case, a universal wall-mount AC adapter and in-car cigarette-lighter cable.

The Harman Kardon Guide + Play is available now for £345.