Brand Name: JianYouCare Model Number: YK-N2 Applicable parts: Head color: White&Gray For people: adult / kids / baby Inlet protection rating: IPX3 Material: ABS Nebulizer Category: Microporous Nebulizer Nominal frequency: 108kHz Power Source: USB or 2 X AA alkaline batteries Size: 50 x 48 x 130mm weight: about 110g(without barrery)