The GE Add-On Smart Switch 12728 Auxiliary Light Switch is a traditional white toggle/joystick switch designed for wall mounting in any room. It is compatible with Amazon Alexa for smart home control and can be used for light control with a maximum amperage of 20A. The switch has a single pole single throw contact configuration and is suitable for interior use with a voltage range of 101-120V. It features app control and a rectangular box shape, making it a convenient and versatile addition to any home electrical setup.