Portable, easy for professional DIY use. Low power consumption. Eliminates odors, Freshens stale air. Safe, quiet and efficient. Ozone Output: 1000mg Input Voltage: AC110V High Voltage: 3.1kv-3.5kv Power Consumption:10W Gas Feeding: Dry Air or Oxygen Ozone Generating Method: Corona Discharge Cooling Method: Ambient Air Cooling Plug Type: US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on. Colour: black Material: plastic Package Contents: 5 x Ozone generator 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.