Talking train window whispers ad messages to you while you sleep
Talking train windows are delivering advertisements to German commuters as part of a trial by Sky Deutschland and advertising agency, BBDO Dusseldorf. A transmitter attached to the window emits a high frequency that can be heard by a passenger leaning on the window but by no one else on the train. The technique, called bone conduction, has previously been used in hearing aids and military communications.
Adverts encouraging passengers to download online TV service, Sky Go, were recently trialled on trains in Munich and North Rhine-Westphalia.
The agency and Sky Deutschland have plans to extend the campaign throughout Germany and say there are plans to use the technique to play music or news broadcasts.
Despite the claims the trial was successful the video attracted a host of negative comments on YouTube.