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I've changed the batteries to no effect. I've been using this product for about 18 months, several times per week in a classroom setting. Sometimes when I press the button there's a red dot, and sometimes there isn't. It's been great--I've never plugged it into anything it didn't work with and the battery life has been fantastic. However, the laser pointer recently started going in and out, unfortunately beginning during my husband's dissertation defense. Hitting it against the heel of my hand will get a response, but that's a little distracting every 30 second during a lecture. Maybe it keeps my students awake.Incidentally, there's an easy driver download to get the presenter to work with Windows 7.
I bought this item two or three years ago, and it's worked great. Highly recommended.
My first time using it, I was rather amazed that it works on the first try. I just plug in the USB stick to the computer and stands at the stage to try out the powerpoint slides, and click my slides 1 by 1 with ease. Only thing is I find it is a little pricey to buy something like this for only one purpose - powerpoint presentations. Unless, if I need to use it daily, I won't buy it.
This presenter allows me to better connect with my audience. My audience is no longer distracted by my computer. A must for presentations.
It does have a timer that you can set in 5 minute increments. I don't know what I did before I purchased this cordless presenter. It has a nice long range and the laser pointer on its own is useful. It also displays the battery strength on the little LCD screen and vibrates when you turn it on so you will know if it still has juice. It then buzzes at the 2 minute and 1 minute mark.In all, a simple and useful product. I had no trouble finding the buttons to advance and reverse my slides as the Logitech is very simple and only has the essentials.
Very easy to set. I like to move about my audience when I present and now I am free to do so. When it goes off it vibrates just like a cell phone. I am still on the first battery I put in it a few months ago and it is stil going strong. One of the reasons I chose this model was that it took regular AAA batteries. I have set it while in the middle of a presentation to remind myself to stop talking in 5 minutes.
One note though, when I purchased this presenter, the cost was much lower (less than half) of what it is as I am writing this review.
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