SiteStamperAir series uses the sound of a high frequency band, and transmits information with a sound pressure output.
URL with a parameter is transmitted to iPhone like the conventional SiteStamper.
An iPhone application (SSAir) is started and it brings close to SiteStamperAir.
To 0 - 50cm iPhone, since the information on 275 characters (2.2k bps) can be transmitted in 1 second, If it is ASP which could transmit the URL not only including ID of a terminal but a parameter itself, and used SiteStamper since it was the skirt, there is also no difficult setup and the additional correspondence to iPhone is possible as it is.