Logitech Wireless Mouse M310T M310TSV No longer needed as I'm reorganizing my desk. It's still usable, so please make use of it. I'll include one new battery. Please check the condition carefully in the photos before purchasing. Product Specifications Mouse Body Size (Width x Depth x Height): 61.8 x 111.5 x 39.2mm Mouse Weight (including battery): 99g Receiver Size (Width x Depth x Height): Ultra-small receiver 14.4 x 18.7 x 6.1mm Receiver Weight: 2g Sensor Method: Laser-grade tracking Scroll Wheel: Yes Battery: 1 x AA battery Battery Life: Up to 18 months Operating Distance: Approximately 10m Wireless Method: Advanced 2.4GHz wireless technology Supported OS: Windows XP, Windows Vista, Windows 7, Windows 8 or later, Mac OS 10.5 or later Connection I/F: USB Product Overview Natural Fit The soft rubber grip and ergonomic shape make it comfortable to use for long periods, and it provides excellent usability for both left and right hands. Precise Control Precise clicking and pointing can be achieved even on surfaces that regular optical mice cannot handle. Navigate your favorite websites with laser-grade tracking (LGT). Power-Saving Design You can use it for up to 18 months* with one AA battery. It saves power with an on/off switch and smart sleep mode. In addition, it has a battery indicator to eliminate the worry of sudden battery drain. * Varies depending on usage.