Specifications:Voltage: DV 5VCurrent: 300mAPower: 2WFrequency: 108KHzNumber of holes: 740Aperture: 5umMaterials: plastic + silicon + electronic componentsSize: app.5x8.5cm/1.97x3.35inColor: As pictures shownQuantity: 1pcNote:Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package includes:1 x Atomization Piece and Circuit Board Module (other accessories demo in the picture is not included.)