Your mobile phone sends a signal to the VibraExciter when your phone receives a text message or phone call. It will switch on the Vibrating stimulator for a set period of time. Other mobile phones, if close (1m) to the device, can [also] activate it. We advise you never use it when the sensations my distract you or divert your concentration when perhaps you need it. It can be your ultimate travelling companion allowing you to stay in touch with your partner.'nuff said.
from: http://www.symplification.com/node/115
link: http://vibraexciter.com/shop/erol.html
This ought to be fun...