ITEM NAME:Air Purifier Ionizer Negative Ion Anion Generator DC 12V~ Description: Features: By using pulses and vibration of electric Appliances,Rise the original low voltage to DC high negative pressure. Making Use of DC high voltage of carbon brush tip to produce high corona, emiting large amounts of electronic at a high speed. Electronics can not remain in the air for a long time, therefore,after reacting with oxygen molecules in the air , negative ions will form. Specification: Material: ABS+Silicone Line Color: show as pictures Size:14cm x 3cm x 3cm(Conversion: 1cm=0.3937 inch, 1inch=2.54 cm) Weight: 13g Package Included: 1x Negative Ion Generator Note: 1.Please allow 0.1-0.3cm differences due to manual measurement, thanks. 2.Please understand because of the light irradiation or computer display difference, so I can't guarantee photos and real color is 100% the same..1x Negative Ion Generator. Material: ABS+Silicone Line.