There are not one but two linear potentiometers for volume, and these are integrated with WS2812 LEDs to show where you are, loudness-wise. For everything else, there’s an SSD1306 OLED display.

The brains of this thing is an ESP8266 on a custom PCB which controls the 127 individually addressable RGB LEDs. The clock may look large, but the big printed parts just fit on the bed of a Prusa i3.

They also produce a range of continuous (always on rather than emitting a burst of flash) video lights such as the CB200C COB RGB LED. I’ve reviewed ... s body. This large full-colour screen ...