--- uid: input-system-mouse-intro --- # Mouse devices introduction The Input System represents mouse input with the [`MouseState`](xref:UnityEngine.InputSystem.LowLevel.MouseState) [device layout](layouts.md) that the [`Mouse`](xref:UnityEngine.InputSystem.Mouse) class implements. > [!IMPORTANT] > The Input System doesn't support input from multiple mice at the platform level, or identifying the current display a mouse is on. The `Mouse` class is based on the [pointer layout](devices-pointers.md) so inherits its controls. It also implements additional controls outlined in the [Mouse API documentation](xref:UnityEngine.InputSystem.Mouse). For a list of platforms that support mice, refer to [Supported devices reference](supported-devices-reference.md).