Connection type    Wireless
Connection interface    USB
Amount of buttons    5 + scroll wheel
Sensor type    Optical
Resolution    800/1200/1600 dpi
Power supply    2 × AAA
Average duration of work without recharging / changing batteries    3-6 months
Color    Black
Operation range    10 m
Product size (without package)    7.0 x 3.2 x 10.5 cm
Individual package weight    0.11 kg
Individual package size    9.5 x 9.2 x 17.5 cm
ROHS / CE    No
System requirements for PC    Windows 2000/XP/Vista/7/8, Mac OS X10