Kramer Electronics RC-5B2 Wired Grey remote control

Wall Plate Insert − 2−Button Auxiliary Control Panel, 2 Buttons The RC−5B2 is an 2−button auxiliary control panel with backlit RGB buttons. It can be used as an auxiliary controller when connected via K−NET to a master room controller (such as the RC−74DL).

2-Button Faceplate - With backlit, configurable color buttons.
K-NET Control Channel - For connecting individual and daisy−chaining multiple panels.
K-Config Installation and Configuration.
USB Port - For upgrading the firmware and setting the K−Net ID number.
Dimensions - 5cm x 2.4cm x 4.7cm (1.97" x 0.94" 1.85") W, D, H.
Size - Dual insert, can be used in any compatible opening: wall boxes, TBUS, etc. Supplied with black and white front plates.