Lenovo 300 Wireless Compact Mouse Features: - Wireless Compact Mouse - The mouse features a 1000 dpi sensor - 3 buttons and a unique ergonomic contour to give you the freedom to create whenever and wherever Includes: - 1 AA battery for 12 months use - Nano USB receiver Specifications: - Colour: Black - It boasts a 12-month battery life from a single AA battery - 10 million clicks lifecycle buttons to offer Super portable design - Warranty: 12 Month