1、STABLE OPERATION: This control button has the ability to resist interference from various environments, such as static electricity, to achieve error free operation. 2、ABS MATERIAL: The electric sofa controller is made of durable, wear resistant, long service life, and use with confidence. 3、EASY INSTALLATION: The simple structure of the control switch of this lift chair, and no wiring, easy to install, can quickly complete the installation. 4、IDEAL REPLACEMENT: The delicate workmanship and responsiveness of this lift chair's control switch makes it ideal as a replacement for the old control switch. 5、RANGE OF APPLICATION: The switch is easy to install and use, suitable for electric sofas, massage chairs and other lift chairs, widely used.