plexer Posted July 10, 2013 Posted July 10, 2013 Lernstift, the first pen that vibrates when u make a mistake by Lernstift (Falk & Daniel) — Kickstarter Interesting that they also have plans to expand on what they can do with it as well. Ben
creese Posted July 10, 2013 Posted July 10, 2013 Not sure about this... A bit too much like this? http://www.amazon.co.uk/Esky-Rechargeable-Collar--Electronic-Automatically-Temperament/dp/B0098U93AQ/ref=sr_1_4?s=pet-supplies&ie=UTF8&qid=1373460354&sr=1-4&keywords=vibration+dog+collar
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