The silver Lenovo Yoga mouse is your ultimate travel mouse for work and play. It possesses a slim and elegant design without compromising comfort and grip. It's also rechargeable, eliminating the need to buy spare batteries. For connectivity, this wireless mouse supports a Bluetooth 4.0 or 2.4 GHz wireless connection. The Yoga mouse boasts an adaptive touch display when in flat mode that provides additional control for presentations and entertainment. Dual wireless connectivity to freely switch between two PCs; Multilayer adaptive touchpad; 180-degrees rotatable hinge to easily switch between mouse and presenter modes; Award winning ultra slim design with 180-degree rotatable hinge; 1 month battery life from a 2 hour charge