- Ergonomic: supports your hand in a fully upright neutral handshake position that eliminates forearm twisting - Small version: for hands less than about 7 inches or 178mm long from the tip of the middle finger to the wrist crease - Unique: short habituation time - Version 4 improved shape: better thumb and finger support - Version 4 convenient adjustment: of pointer speed

System requirements
Windows operating systems supported	Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Enterprise, Windows Vista Enterprise x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows Vista Ultimate x64, Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64
Mac operating systems supported	Mac OS X 10.10 Yosemite, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Weight & dimensions
Width	105 mm
Depth	81 mm
Height	71 mm
Power
Power source	Cable
Ergonomics
Plug and Play	Y
Design
Form factor	Right-hand
Product colour	Brown
Mouse
Purpose	Office
Device interface	RF Wireless
Scroll type	Wheel
Buttons quantity	6
Buttons type	Pressed buttons
Scroll	Y
Movement resolution	2600 DPI
Recommended usage	PC/notebook
Number of scroll wheels	1
Logistics data
Harmonized System (HS) code	84716070