Sleeper

According to legend, there is a profession called sleepers, and their voices have a hypnotic effect.Of course, this is just a legend, adding a mysterious atmosphere to the story.Sleeping person is an application in itself, which uses the best sound amplitude wave and chromaticity to make the person being put to sleep achieve a good sleep effect.Bai Yan is such an existence, coming and going without a trace.Many insomniacs in the city are following in his footsteps.