Bluetooth wireless photoelectric design USB port
Wireless Bluetooth technology, over 10 meters' valid operating distance
Inserted radium indicator clearly marks briefing emphases
Latest arced curve ergonomical design provides cozy handle
5 programmable buttons for free operation
Works on allumreflectong surfaces
Windows 95/98/ME/NT/2000/XP Compatible
Portable sheath offered
One-year quality guarantee
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