The silent alert along with LC display is very helpful and was with my purchase of the deciding factor. A quick glance and the bars tell you how much time remains about. A closer look and read off the clock. You should not pay attention between both indications, brings one of the vibration again to ride (five to two minutes before the end of the set time). That the duration of a presentation can only be set in five minute increments, I see not so bad. I had never hold a 13-minute presentation - the time was always divisible by five.
As the presenter logs as keyboard, runs on any computer with USB without driver installation after ~ 20 seconds. This can sometimes without a laptop and only with Presenter and slides on a USB stick to a presentation.
Incidentally therefore can control other programs. A slide show with pretty much any image viewer you can now control from your sofa.
Only negatives: Like other buyers also I cut myself when opening the packaging.
