The Microsoft Modern Mobile Mouse-Peach has two buttons, a right and left click, a Bluetooth® 4.1/2.4 GHz frequency range, Bluetooth® 4.0 or higher must be supported by the host in Peach, Windows 11 Home/Pro, 10, 8.1, and 8*. (Note: Bluetooth 4.0 is not supported by many Apple and Windows 7 devices). powered by two AAA batteries, one year