Description in English:
The Bluetooth Mobile Mouse is compact for portability

You'll appreciate how the Bluetooth® Mobile Mouse 3600 comfortably fits your hand and your mobile lifestyle. Use it just about anywhere, even on a rough park bench or your living room carpet, relying on Microsoft BlueTrack Technology1BlueTrack Technology does not work on clear glass or mirrored surfaces. No transceivers or wires to manage. Keep using your mouse for up to twelve months with a single battery.