In Windows XP, the device is very easy. If it is turned off or the computer comes out of sleep mode, so just click - a second later she's active again. Under Vista the facility was just as easy, but after swith / Standby I've had it a few times until manually disconnect and reconnect, so that did what again.
Under Linux (openSUSE 10.3 and Kubuntu 7.10) it immediately goes, you have to enter a Device Code not even.
Under Vista also there should also be noted: The cursor does not work because so fluid and supple as under XP. Before seemed igendwie as the very first wireless mice. That's me but only really noticed after I had operated under XP - perhaps even just a driver issue with me.
For me a transport case was also there (material). The range is a few meters, so you can also cheer sofa operate its MediaPC on TV with it. The key resistance is at first struck me, because it is significantly higher than with my extremely light-clicky desktop mouse, but it occurs to me now no longer on.