5V USB ultrasonic sprayer driver board and atomizer board, Low driving voltage, low power consumption, low impedance, stable waveform, high conversion efficiencyRing atomizer plate, middle spray, 5um ultra-fine spray holes, 740 ultra-dense spray holesThe surface of the atomized film adopts an anti-oxidation silver layer, which protects the coating process and has a long service life, Use environmentally friendly electronic componentsStrong versatility, amount of fog, stable performance, the chip has automatic timing shutdown function.5V USB power supply mode, which can be powered by for Android mobile phone charging cable.Voltage: DC5VCurrent: 300mAPower: 2WFrequency: 108KHzDriver board size: 35x19mmDiameter of atomized steel sheet: about 16mmOuter diameter of silicone ring: about 20mmWire length: about 8cmThe number of holes is 740, the hole diameter is 5umMaterial:Composite materialcolour:greenPackage Contents:2 x circuit board2 x Atomization filmOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.