Compact Computer Mouse: This Logitech wireless mouse features an ambidextrous design with a comfortable, contoured shape that feels great in either hand and is significantly better than a touchpad. Durable and Reliable: This wireless USB mouse has a scroll wheel, boasts up to 1 year of battery life (2) with smart sleep mode, and comes with pre-installed AA batteries. Universal Compatibility: No matter what type of computer you own today or buy tomorrow, this mouse will be compatible with your Windows PC, Mac, or laptop. Plug and Play, Easy to Use: Simply plug in the Nano USB receiver and start working in seconds. It provides a strong and reliable connection for your wireless mouse with a range of up to 10 m (5). Better Than a Touchpad: A recent study shows that laptop users who choose the M185 over a touchpad are 50% more productive (3) and work 30% faster (4). COMPACT AND PORTABLE: This computer mouse's compact size and smooth cursor control are perfect for small to medium hands, tight workspaces, offices, or busy desks. Upgrade to the Logitech M235 Wireless Mouse: The M235's soft rubber grip, USB receiver for multi-peripheral connection, and battery status indicator provide extra comfort. Type: Applicable Models: Laptops Photoelectric Resolution: 1000 dpi (dpi) Number of Keys: 3 (keys) Interface: USB Wireless Transmission Frequency: 2.4 GHz Color: Red Package Includes: Mouse *1