Cuchen Black Diamond IH Pressure Rice Cooker & Warmer 6cup WHA-LX0601 Serial number on cast iron inner pot - Black diamond coating of inner pan for strength FND display with touch screen is for English and Korean Reservation Keep-warm function - control warm temperature and save energy Speedy cook for mixed rice in 29minutes (white rice in 15minutes) 1year warranty offered from manufacture (warranty card included)