High battery consumption and poor button layout

Did the predecessor used and was very happy with it. The R800 has a better feel, but that's all. The green laser is striking, but may also not more than a red laser. After use for some presentations (without excessive use of the laser), the batteries were exhausted quickly. The predecessor could forget switched over days while the batteries kept for several months.

The worst part of the R800, however, the key arrangement. It's happened twice to me now that I've broken an important presentation, since the "End Show" button right next to the Keynote "Nächtes Slide" button is.

Absolute no-go for professional use, just not a "Professional Presenter". I reach back to the predecessor. Should this no longer can get to alternatively take advantage of the Wireless Presenter R400 at least not eat so many batteries and costs about half. However, the keys are just as unfavorable.

Another shortcoming in the new Logitech is the USB flash drive. The is by rounding even bigger than its predecessor, so adjust some notebooks with the stick on the side (MacBook Pro 15 ") is no longer on all Präsenterpodeste. I do not understand how it now microUSB Bluetooth or mini memory sticks can give, but this USB flash drive must still be huge.