Contour Design RollerMouse Pro2 vs Epson Pen A

Comparison of RollerMouse Pro2, Pen A

19 specifications	A Contour Design RollerMouse Pro2View product	B Epson Pen AView product
Features1 differ
InterfaceKnown for one	USB	—Unknown — not stated by the source
Buttons quantityKnown for one	7	—Unknown — not stated by the source
Movement detection technologyKnown for one	1250	—Unknown — not stated by the source
Plug and PlayKnown for one	Yes	—Unknown — not stated by the source
Product colourDiffers	Black	Orange, White
ScrollKnown for one	Yes	—Unknown — not stated by the source
Wrist restKnown for one	Yes	—Unknown — not stated by the source
Wireless technologyKnown for one	—Unknown — not stated by the source	940nm IR
Country of originKnown for one	—Unknown — not stated by the source	China
System requirementsidentical
Compatible operating systemsKnown for one	Microsoft Windows 8/7/Vista/XP/ME/98 Microsoft Windows 2008/2003/2000/NT 4.0 Apple OSX, Apple Mac OS 8.1 +	—Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	510 mm	—Unknown — not stated by the source
DepthKnown for one	90 mm	—Unknown — not stated by the source
HeightKnown for one	32 mm	—Unknown — not stated by the source
Poweridentical
Battery typeKnown for one	—Unknown — not stated by the source	AA
Packaging dataidentical
Package depthKnown for one	—Unknown — not stated by the source	375 mm
Package heightKnown for one	—Unknown — not stated by the source	68 mm
Package weightKnown for one	—Unknown — not stated by the source	106 g
Package widthKnown for one	—Unknown — not stated by the source	205 mm
Quantity per packKnown for one	—Unknown — not stated by the source	1 pc(s)

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.