Patent No.: ZL 2006 3 0153841.2
Technology: radio frequency: 2.4G
Function: Laser pointer, page up/down, trackball mouse, optical mouse, USB charge
Features:
1.Wireless presenter work on the air
2.Optical mouse work on the desktop
3.Built-in flash memory optional
USB Plug-and-play, no driver required
Operating system: Windows 98, 2000, 2003, ME, XP, Linus and Mac OS,Vista
Battery : rechargeable battery