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1 What is the working principle of reading pen ? The working principle of point -reading pen is mainly based on optical image recognition tech

Scan Translator Pen CPU RK3326 Quad-core ARM architecture Certification Design patent,CE,CCC,FCC, Protection Function Text Translation, Voice Translatio

Smart Pen 2024 | Discover The Future Of Writing Smart pen writing set - go paperless and unleash creativity This set includes 1 digital smart pe

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