NFC (Near Field Communication) is something we can easily find in mid and high range cellphones these-days, developed to allow instant contactless transactions, data exchange, and simplified setup of more complex communications such as Wi-Fi the technology holds a lot of potential.
NFC tags allow users to perform automated tasks like change of phone settings, a text to be created and sent, an app to be launched, or any number of commands to be executed when in proximity to a particular tag. This functionality can be used to automate a lot of stuff using multiple tags, for example turn-on bluetooth and launch MAPS application when inside your car.
Wafer is an NFC tag for all existing NFC devices, which is not only cheaper then competition but has more memory, maximum device compatibility and is customizable with you own text. With costing of just a piece, this is something one should not miss if having a NFC capable device.