[:en]Blue pen to write with usb on one end[:]

[:en]Blue 3D pen which one uses to write resting on a reflective floor. This has a usb stick on one side with four transmitters. The camera approaches to usb device and shows the steps of the data in the form of moving lights.[:]
RF Unlimited License
HD Video MP4
1920 x 1080 px
#143438  /  Created by Kmeel  /  MP4 Video  /  37.46 MB  /  1920 x 1080  /  15s @ 24fps
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