With world-class amenities, space, comfort and superb onboard entertainment, it is unlimited luxury especially for business and first class flyers. While the Emirates offers shower spas, a spacious onboard lounge and entertainment system with more than 1,200 channels on demand, Singapore Airlines offers first-class suites with double beds. The suites on Emirates have an electrically-operated door, mini bar, reading lights, work desk, electrically controlled mini-bar and room service feature. The innovative seats also feature a multi-mode massage system with adjustable speed and intensity. Each cabin has a lighting system, which adjusts throughout a flight to reflect the time at the destination and minimizes passengers' jet lag. Korean Air has a luxury retail store onboard the 555-seater plane. So far, 49 aircraft have been delivered to six customers - Emirates (15), Singapore Airlines (11), Qantas (10), Lufthansa (7), Air France (5) and Korean Air (1).