Bledology E Ink badge is an interactive contact exchange platform aimed for conference attendees. The badges use 4" E Ink displays produced by Plastic Logic.

The E Ink badges are now available and cost $60 each (these are reusable of course across many conferences).

E Ink display info: 
4" Plastic Logic E Ink
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ynvisible ink kit - create your own electrochrommic printed displaysynvisible ink kit - create your own electrochrommic printed displays