GPS enabled tour assistant is expected to replace tourist guides to an extent. Its a voice enabled device that speaks out as the tourist is traveling from places to places. When the tourist  is standing near major landmarks, it will detect my location and will play an audio clip relevant to that location. This is achieved by getting the location information from a GPS receiver and cross matching them with audio files and their geo tags. Audio files are tagged with location coordinates and a tolerance range.

In a particular location, the files that matches the tolerance range are played.  To put it simply the product is an MP3 player with a GPS receiver on it.