TechPowerUp checked out the GamaKay LK75 Wireless Mechanical Keyboard
A quote from the article:
The GamaKay LK75 is an interesting take on the volume knob + integrated display feature set we're seeing on mechanical keyboards. It integrates the two into a cohesive single position giving extra room for keys in this hybrid wireless keyboard with plenty of features to interest newcomers and keyboard enthusiasts alike.GamaKay LK75 Wireless Mechanical Keyboard Review