This thing works great! Just plug it in to the USB port and it works; nothing to install! It's very comfortable in your hand and very responsive to changing slides on PowerPoint. It has a red laser pointer, a button to advance slide and one to reverse slide, and another button to blacken screen if needed. I have used it a few times since I received it without a "glitch". Very useful!Get more detail about Logitech Wireless Presenter R400 with Red Laser Pointer.
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