I bought so I can keep in school papers or PowerPoint presentations me August LP170B. Of the functions ago everything is in place and therefore fulfills its purpose, unzwar switching to long distance the slides, switch back, PP Finish PP-start and the details with the laser pointer intigrierten. Delivered this is in a small box containing a beautiful leather case and thus transporting is also a convenience. Can this PP-Presenter, only recommend for this price who wants more must spend more ;-).