Logitech M185 Wireless Mouse Wireless mouse features plug-and-play simplicity to let you plug in the nano receiver and start using your mouse right away with no software or hassles. The tiny wireless receiver is so small and unobtrusive that you can plug it in and forget about it. Advanced 2.4 GHz wireless connectivity provides the reliability of a cord with wireless convenience and freedom without any delays or dropouts. 12-month battery life eliminates the hassle of frequent battery changes. The On/Off switch and smart sleep mode help conserve power for increased battery life. More from the Manufacturer The symmetrical shape lets left as well as right handers use mouse with ease From controlling text size to image zoom, opening or closing tabs, the featured scrolling wheel makes it a breeze to perform tasks quickly Radio Frequency wireless connectivity offers more freedom for people who want to control their Notebooks from a distance Features optical resolution for silky smooth movement Product Type: Mouse Additional Warranty Information: 3 Year Limited Product Color: Gray Color Family: Gray Environmental Compliance: Waste Electrical and Electronic Equipment Directive (WEEE) Country Of Origin: China Assembly Required: No Brand Name: Logitech Manufacturer: Logitech Product Model: M185 Product Name: M185 Wireless Mouse Device Supported: Computer Manufacturer Part Number: 910-003888 Manufacturer Website Address: http://www.logitech.com Packaged Quantity: 1 Package Contents: M185 Wireless Mouse Nano Receiver 1 x AA Battery (Pre-Installed) User Documentation Limited Warranty: 3 Year Weight (Approximate): 75.2 g Pointing Device Host Interface: USB Scroller Type: Scroll Wheel Total Number Of Buttons: 3 Wireless Operating Frequency: 2.40 GHz Ergonomic Fit: Symmetrical Movement Resolution (Dpi): 1000 Pointing Device Connectivity Technology: Wireless Pointing Device Wireless Technology: Radio Frequency Movement Detection: Optical