We are a factory,all model were created by our R&D team Have own patent of wake up light A031 Quality guarantee Natural sound wake up light function : light becomes stronger and stronger from 0,15,30,45,60,75,90mins until the time pre-set, like the sunrise. Features and Spec.Natural sound wake up light function : light becomes stronger and stronger from 0,15,30,45,60,75,90mins until the time pre- ...