Use this Presenter almost daily. There are fantastic system compatibility (Windows) and the battery life. I do not use the laser pointer. As for me here at Amazon z.Zt. a little disturbs the almost daily changing price. It can not be that the selling price within 5 days multiple of 28.00 - 40.74 EUR change (as of 9/22/14). Strangely, the displayed price of 40.74 euros on 22.09.2014 was not even the cheapest (See: Amazon Prime 35,89 Euro, but 3 weeks delivery time). I can not say how this will be passed on the price information, but this is extremely confusing for the customer / the customer.
To summarize (because yes Short)): Standard equipment for presentations Topp, but I would watch the prices. They vary too strong at the time. Not necessarily recommended for spontaneous buyers.
