You are looking on a Logitech M325c Wireless Scroll Optical Mouse w/Nano USB Receiver. Looking for a Compact, On-The-Go design wireless mouse, this is exact what you need.  At home, at work, at school—forget about tricky finger maneuvers with your laptop touchpad.  Enjoy precise clicking and pointing—on surfaces other optical mice can’t handle—while navigating your favorite websites thanks to Logitech Advanced Optical Tracking.  The compact contoured design with soft rubber grips keeps you comfortable—even when you’re on the go. This mouse includes the Logitech Nano receiver.  The tiny wireless receiver stays in your laptop, so there is no need to unplug it when you move around.   A wireless mouse that delivers a better mix of precision and comfort—with designed-for-Web scrolling. Feature & Specification: ·        Number of Controllers: 1 ·         Controller Features: Ergonomic Design, Wireless, Scrolling Wheel, Plug and Play Technology ·         Micro-Precise Scrolling, Back & Forward for Easy Web Navigation ·        Smooth & Accurate Cursor Control ·        Wireless Technology: 2.4GHz Wireless USB ·        Number of Buttons/Keys: 2 ·        Maximum Operating Range: Up to 33ft ·        Design: Comfortable Contoured Design ·        Mouse Speed: 1000 dpi ·        System Requirements: USB Port ·        Model Compatibility: PC & Laptop