An ambidextrous travel-sized wireless mouse with long battery life. Improve the way you connect and communicate, work and play. Built with strict HP standards and guidelines, this world-class HP Wireless Mouse 220 effortlessly blends sleek, modern design with life-enhancing, advanced features. Wireless - Bluetooth - 2. 40 GHz. 1 Year Warranty. Mouse Tracking Method, True Color & Use: Optical, Black. Mouse Number of Buttons: 3. Mouse Dimensions: Length 2. 2" x Height 1. 5". Batteries Included & Battery Requirements: 1 x AA Battery Included. Multi-Device Support Type: Not Applicable. Safety Data Sheet