DONGKER USB Mini Humidifier DIY Kits,DV 5V Mist Maker and Driver Circuit Board Fogger Oscillating Sheet Circuit for Learners Beginners

["Surface of the Atomizing Sheet Adopts An Oxidation-resistant Silver Layer to Protect the Coating Process.","USB Mini Humidifier DIY Kit Adopts Electronic Components.Round ring atomizer plate, middle spray, 5um ultra-fine spray aperture, 740 ultra-dense spray holes.","5V USB Ultrasonic Mist Maker Driver Board and Atomizer Plate.","Low Driving Voltage, Low Power, Low Impedance, Stable Waveform, High Conversion Efficiency.","SHOP WITH CONFIDENCE: To Provide You With the Highest Quality Service, If You Have Any Question, Please Contact Us.We Will Provide After-sales Service Until You Are Satisfied."]