Summary: Pros: Well it works. No drivers needed and it's a plug n play to windows XP and Vista (i tested it in both). The buttons do their job so is the mouse scroll. It is small and light weighted. The Laser is good and strong. The mouse or presenter operation can simplify your needs. Cons: The "connect" button is placed in the rear side so usually when i press connect i accidentally press 2-3 thousand other buttons of the presenter.
Summary: I think the price of these items is high and I needed this quickly so I ordered from Amazon as they are quick and reliable. It works well, most of my home and work computers recognise it and function well with no trouble. this helps give more professional presentations and I recommend a device like this.