Hi tech Pen will gently vibrate when spelling mistakes or a bad writing appears while writing. The pen is named as Lernstift which is a normal pen with real ink,with an extraordinary motion sensor and a minor electric cell fueled Linux workstation with a Wifi chip is inserted in it. Which makes the pen to vibrate when spelling mistakes or a bad writing appears while writing.Founder of this pen is 33 old german man Daniel Kaesmacher.
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