I have already gained experience with cheaper two presenters, but which do not have a timer and do worse on the range. Rash for this purchase was the built-in timer and warning Vibratone overdraft. I have mainly risen for the final exam of my training meet this Presenter for the purpose of pre-bene time exactly. The Presenter is ergonomically in the hand and all buttons are to feel good also nervousness. I would recommend this Presenter fully because it is considerably more security at a presentation by the vibrations (eg 5 minutes before the end) and the time display. The price I find a bit too high but for example an audit should be me something like this treat, as it makes usually only once in his life. I'm at least glad that me this little marvel has helped to a final presentation with a 100% rating.