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A) a schematic showing the setup for smartphone-based sensing. a laser... | Download Scientific Diagram
Team Impact Man Hand Holding Laser Pointer Male Speaker In Suit Giving A Talk At Business Meeting Economic Forum Audience Listening To Him At The Conference Hall Stock Photo - Download Image
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Mini Recording Smart-pen for Multifunctional Portable Exquisite Pen-like Smartphone Laser Pointer Digital Voice Recorder Backup Device : Portable Audio & Video
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