The Professional Wireless Laser Mouse is an ergonomic full-size mouse that provides comfort and support for all day use. Complete tasks with ease using the precise 1600dpi laser sensor and 4-way scroll wheel. Choose modern design without compromising on productivity. Connect compatible Lenovo devices with just 1 nano receiver. Highlights: Lose the wires: reliable 2.4ghz wireless connection with multiple pairing protocol No guessing: 2 year commercial battery life with LED indicator Precision tracking: 1600dpi high resolution laser sensorFeatures: Advanced 2.4ghz wireless connectivity with multiple pairing protocol Connect compatible Lenovo devices with just 1 nano receiver 1600dpi high resolution laser sensor 5 buttons, 4-way precision scrolling 2 year commercial battery life (may vary based on user habits.)