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Wireless Presenter Functions:
1.Red Laser Pointer
2.Page Up/Down
3.Blank Screen
Technology: 2.4GHzRemote distance: not less than 15 metres
USB Plug-and-play,no driver required
Built-in flash memory optional (1- 8GB)Size: (long * high * wide) 115×18×19mm; 65×7×4mmBattery: 1XAAAOperating system: WIN98/SE/ME/2000/XP/Vista
Teaching Machine