Panel material: stainless steel, acrylic, tempered glass, copper, engineering plastics, etc.
Panel color: stainless steel, white, rose gold, champagne gold, titanium, black titanium, bronze, etc.
Stainless steel panel types: hairline, random grain, circle grain, mirror surface, etching
Display: dot matrix display, broken code LCD, true color LCD
Buttons: mechanical buttons, micro buttons, touch buttons, inductive touch buttons
Optional: arrival bell function, card swiping function to call the elevator
Style: wall-mounted, embedded, vertical
