HP 150 Wired Mouse- Elegant Ergonomic Design, 1600 DPI Optical Tracking, USB Plug & Play / 3 Years Warranty (240J6AA), Black Precisely right: With its 1600 DPI optical sensor, this mouse works on almost any surface with astounding accuracy. Stash it in your bag with your laptop and you'll be good to go.;Click real quick: Get to clicking real quick with USB plug-and-play. It's as easy as opening the box. Looks good, feels good: Elegant ergonomic design gives you all-day comfort so you can get it all done. It feels so natural, you'll forget you're holding it. Lefty or Righty: Whether you're a righty, lefty, or bothy, this mouse is ready for however you click. Control the scroll: Three buttons in one mouse. Left click, right click, or center click on the dual-function scroll wheel. You've got all the control you need in one fingertip.; 3 years manufacturer warranty on the device from the date of purchase. Hardware Platform: Pc