Compact 2.4GHz wireless and Bluetooth mouse compatible with Windows and Mac OS The 6-button design allows for dynamic usability; includes left, right, middle (in the wheel), forward and backward buttons (left side) DPI switch button and scroll wheel Super ergonomic grip with thumb rest that fits comfortably in the palm of your hand 5 adjustable sensitivity levels in 600, 1000, 1600, 2400 or 3600 DPI for customised precision control Plug-and-play USB Nano receiver included for convenient, easy use; can also connect via Bluetooth 1 x AA battery included; the battery lasts approximately 6 months for 2.4Ghz and 5 months for BT mode, with an average of 2 hours of use per day for 20 working days; goes into sleep mode after being idle for 5 minutes Note: You will need a USB Type-C to USB Type-A female adapter if your computer only has USB Type-C ports