KOKUYO USB Mouse for Presentations - Basic Model Simply plug the receiver into your PC's USB port to use. The mouse pointer can be freely moved using the remote's mouse pointer control buttons. You can also perform left and right clicks just like a regular mouse with the click buttons. A red laser pointer is built into the remote, making it convenient for presentations. You can also control PowerPoint page "forward/back" with the remote. Operation has been confirmed on Win10. This is not a new, unused item. While there are no noticeable scratches or stains, there is a sense of use. In particular, the rubberized part on the back of the remote has become sticky due to aging. I carefully wiped it with diluted alcohol, and the stickiness is almost gone, but it may reoccur over time. Two AAA alkaline batteries for the remote are included. We look forward to your purchase if you understand the above contents.