Press one key to erase the whole handwriting; write with equipped stylus; no need of markers/chalks/pens.
Clear handwriting; reflect by natural light; visible within 30 meters; extra wide viewing angle.
Not the same as backlight technology of LCD display, LCD blackboard reflects the handwriting by natural light, no harm and radiation to eyes.
Press one key to erase; time saving and efficient; confidential information cannot be traced or saved, suitable for bank offices or any institutes with strong demand for confidentiality.
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