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