Luma Cool Whitening System uses led ligh t emitting diode technology producing a high speed.In office power whitening system. The unit whitens both arches simultaneously in less than around 1 hour. It also uses an optical sensor, countdown patient display window, remote control operation and requires no maintenance. Lumacool comes with a roll around base assembly. This item was tested and still works. Comes with AC adapter and safety glasses.Have any questions please ask ?Box or package may not be in the best condition. Have Question Just Ask?