AOpen RO-27G Wireless Optical Mouse - USB & PS2

?/span>Model: RO-27G 
Interface Protocol: USB and PS/2 Combo
Current Consumption: 20mA max@5V
Mass weight (with cable): 1(lb)
Switch Life: 1,000,000 cycles
Button: 3 buttons(2 in Top,1 in Wheel)
Cable Length: N/A
Electrical MTBF: Rechargeable
Mouse Resolution:  520 dpi
Mechanical Life: 300 miles
Operating Systems: Windows 95/98/Me/NT/2000/XP and beyond
Certifications: FCC Class B, CE
Packing: AOpen Retail Box

RF wireless technology
Reliable 2 channels
4 Rechargeable Batteries included
Receiver works as the Charger
Low power consumption
Sleeping power-saving mode
Auto awake function
Rapid recharge
iWheelWorks
PS/2 and USB Combo connector
Specifications