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5V USB ultrasonic sprayer motive force board and atomizer board, Low riding voltage, low power consumption, low impedance, stable waveform, excessive conversion performance Ring atomizer plate, center spray, 5um ultra-fine spray holes, 740 ultra-dense spray holes The floor of the atomized film adopts an anti-oxidation silver layer, which protects the coating project and has a long service life, Use environmentally pleasant electronic ingredients Strong versatility, number of fog, steady performance, the chip has automatic timing shutdown function. 5V USB energy delivery mode, which are powered by way of for Android cellular phone charging cable. Voltage: DC5V Current: 300mA Power: 2W Frequency: 108KHz Driver board size: 35x19mm Diameter of atomized metallic sheet: about 16mm Outer diameter of silicone ring: about 20mm Wire length: about 8cm The variety of holes is 740, the outlet diameter is 5um Material:Composite material colour:green Package Contents: 2 x circuit board 2 x Atomization film Only the above package content, different item are usually not included. Note: Light and varied displays can cause the colour of the item in the picture somewhat varied from the real thing. The dimension allowed error is +/- 1-3cm.