... , office, meeting, retail store, restaurant, supermarket, car, bus, subway, club...For notice to attract one's eyesight.. Feature & Function: Input ... (mini-5 pin)Brightness Control4 levels (25%, 50%, 75%, 100%)Auto Brightness ControlN/AClock supportTime / Date / Year / Day / D-dayPower ... ~220V AC Input, DC 5V / 1,000 mA Output )Auto on/off SupportN/ASupporting OSWindow 7, Window Vista, Window XP ...