Wireless 2.4 GHz RF, Six-Button, Ergonomic Mouse with USB Receiver Dongle, Adjustable Three-Level Resolution, Scroll Wheel and Intelligent Power Management for Mac and PCAdjustable three-level resolution with wireless performance.The Manhattan Contour wireless mouse combines modern design with advanced precision and high-stabilization performance. Its top-mount push-button instantly shifts resolution from 1000 to 2000 dpi to suit a wide range of applications, including routine computing tasks or computer games and editing requiring a fine touch. Its full-sized shape and six-button configuration provide direct access to essential commands with minimal wrist movement. A non-slip texture applied to critical surfaces helps provide a secure, comfortable grip. The remarkably small yet powerful USB micro receiver with 2.4 GHz technology provides an effective range of up to 10 m (33 ft.) and stores in a special onboard compartment or remains installed for true wireless convenience. An auto power management helps maintain proper battery levels for reliable operation. Plug and Play capability and Windows XP/Vista and Mac OS 10.0 and higher compatibility offer quick and easy installation. The Contour wireless mouse requires little maintenance for long, dependable service.