Logitech - Logitech Wireless Presenter R400

hey guys it's Calvin and if you're looking for a great presentation clicker then this is a Logitech r400 wireless presenter I absolutely love keeping presentations and when I would see other people giving really cool presentations with these Wireless presenters I decided to get myself one I've been using this thing for several years now and I really enjoy using it now Logitech does make a few other presenters including the art 800 which has a small little screen and some more advanced features as well as the new spotlight presenter which is really premium but this our 400 presenter had everything I needed at a really good budget price first off ergonomics you'll notice that the presenter is bigger at the bottom than it is at the top this makes it really easy to hold other presenters that are a more box like or rectangular feel like they could potentially fall out of your hand but this o