... As a senior member of KNX, our company- Guangzhou Video-star Group (GVS) is one of the best manufacturers ... protocol gateway, detector/sensor, user interface, etc. Product Features:1/2/3 push-button models.Programmable RGB LED.Storable Scene function ... operation supported.Applicable to blinds & shutters control, value sender.Six optional colors (white, silver, yellow, blue, pink, black)GVS strictly ...