Super fine spray particles, super large amount of atomization, non - wet desktop. Low driving voltage, low power, low impedance, stable waveform, high conversion efficiency. Circuit board using electronic components, environmental protection. Spray in the middle of the atomization piece, 5um ultra-fine spray aperture, 740 ultra-dense spray hole number. Built-in protection program, automatically cut off the power after three hours, re-plug the power can be resumed. 100% brand new and high quality Voltage: DV 5V Current: 300mA Power: 2W Frequency: 108KHz Number of holes: 740 Aperture: 5um Colour:As Shown Material:plastic Package Contents: 10 x circuit board 10 x Atomization film / 1 x circuit board 1 x Atomization film Only the above package content, other products are not included. Note: Light reflection 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.