(++) Plug and play, that is, the mouse is detected under Windows 7 without additional software.
(++) With mouse wheel (left / right "click") are browser pages "back" or scrolled "in front". When vertical click on the wheel a Web link in a new window (tab) opens.
(++) The mouse wheel has a fine grid and running precision (standard: scrolling in three lines steps). If necessary, can be adjusted, inter alia, this setting through the Windows Control Panel.
(++) Pleasant feel of the rubber sides and matted surface.
Other features include:
non-visible infrared light
On / off switch
lit LED: green (when switching on) or red (Replace battery)
Unifying receiver can be extended with Logitech keyboard, receiver compartment in the mouse
