[Innovative design] The sleep aid machine and the portable air purifier are cleverly designed together. It is very simple and convenient to use and can better improve the sleep effect.[Scientific sleep aid technology] The sleep aid machine has 3 modes and 9 levels of adjustment. It can properly stimulate your palms, let you concentrate, help adjust the sleep mode, and fall asleep quickly.[Negative ion sleep air] The sleep aid machine with personal ion air purifier adopts the latest negative ion technology, releasing more than 200 million nano negative ions in the air, so that you can enjoy fresh air at any time, thereby improving sleep and mood[With display function] The sleep aid machine has a functional display screen, which is very convenient to operate, clear at a glance, and more convenient to use.