The best choice of travel-size wireless mouse This sleek and stylish travel-size design offers exceptional quality in a modern wireless solution. The compact ambidextrous mouse provides excellent portability and perfect ergonomics. Complete tasks with ease using the precise 1200 dpi optical sensor. Connect compatible Lenovo devices with just 1 nano receiver.3 Buttons (1) Left click, (2) Right click, (3) Click wheel Ambidextrous design for both left and right hand comfort 1200 dpi optical sensor 1AA battery for 12 months battery lifeTravel size with 2.4 Ghz nano receiver