Novel mouse

The utility model provides a novel mouse, comprising a cylindrical body; a left key, a right key and a wheel are arranged on the body, a lens and an LED (light emitting diode) light are arranged at one end of the body, and an arc elastic clamp is arranged below the body and is matched with a finger in shape; during use, people can attach the whole mouse to the finger by utilizing the arc elastic clamp, and then can move the mouse to places outside the desktop, such as a thigh, and a user can very conveniently use the mouse by downwards placing the lens on trousers and clicking the left key, the right key or the wheel. In addition, the LED light on the mouse attached to the finger can be turned on at dusk or when light rays are darker, so a keyboard becomes clear to prevent from misusing keys and wrong type-in.