It is also extremely smooth and delicate, flits without feeling a feedback from a corner of the screen to another and is therefore getting used to, even for a compact mouse.
Moreover, it is hardly possible to keep for a male hand (right-handed) this device: Due to their diminutive size, they do not fill the hand but they are considered more or less with his fingertips. Therefore 2 stars withdrawal.
Otherwise it is at least as precise as a Logitech Laser Mouse and funktionniert immediately without any installation (XP), whether you are before or after the start puts them in a USB port. In addition, the 4 round sliding feet seem to last much longer than at Logitec (which is not difficult).
I would recommend this mouse only for people who need them mandatory for reasons of space or very have small children.