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