Ergonomic design: ergonomic button shape, bringing comfortable grip, suitable for all kinds of hand users to operate Simple installation: user-friendly design, quick replacement without professional tools, and quick, saving valuable time Selected from with good wear resistance and fall resistance, extending service life : after strict testing, it is ensured to be stable in various environments, and it is not easy to break down, thus improving Sensitive touch: the Switches button is sensitive and easy to press, which can quickly starts or stop the Vacuum Cleaners and improve the user