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Packed with biodegradable material, the belt contains a series of laser light pens, to be easily ripped off and attached to the fingertip, fingernail, or tip of a pen. By pressing the button at the center, the device can be used as a regular pointer with its beam of laser light. Each unit can be used for a duration of 2 to 3 hours, suitable for any session of lecture, speech, or briefing. The unit can be recharged or recycled after exhaust of power. Even if thrown away, the materials are biodegradable and environmentally-friendly.
You, M. L.
Lee, C. F.
Yu-chi Huang Zi-Jing Chen Tsung-Hsun Tsai