Note: This item comes with US plug, please confirm the voltage of your area before purchasing. If you are looking for a practical and affordable air purifier, then your research is over here. With high durability, not easy to breaking and wearing. It will be a good choice for you. Can be used as a gift to your friends and families. Adopted of good quality, not easy to breaking and damaging. Features -Material: ABS. -Size: About 11.50X4.00X5.00cm/ 4.52X1.57X1.97in . -Air Purifier Air Volume : 50 cubic meters/hour. -Power Mode: Alternating Current. -Control Mode: Button Type. -Working Principle: Negative Ions. -Applicable Area: 41 (inclusive)-60 (inclusive). -US: 110V. - Releasing fresh negative ions, purifying pollutant in the air, and double-effect protection at ease. - There are more than 20 million negative ions released around it, which is more scientific and more evenly distributed. - Portable design, small sizes, light weight, easy to carry, button type, easy to use. - Fast purification and quickly charging time, long working time, convenient to use. - It has a stylish design, also could be a nice decor for your living places.