I use PowerPoint presentations when I teach and also when I lead music in churches and clubs. This device works great. This frees my hand to play the guitar. Let me warn you that it comes with no instructions, so you'll have to figure it out yourself how to do the following: 1) Plug the cable into your computer's USB port - a tricky step I know. 2) Wait a little. for your computer to recognize it - mine did it in about 30 seconds. 3) Start a powerpoint show - I hope you know how to do this, otherwise the device is useless. 4) The big pedal that says "NEXT" takes PowerPoint to the next slide - it can be hard to understand, but it really does! 5) Large pedal that says "Previous", uh. moving it back to the slide is tricky, I know. Jokes aside, he does exactly what he says, pulls out slides to work hands-free. Others have suggested buying an extension cord since the cord is about 6 feet long. long. I moved on and broke down and spent another $4 on a 10ft USB extension cable here at Revain. I connected it to my computer and the device's cable, and it still worked perfectly at 16 feet away. Nice little device.
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