Features: Experiences power of our high concentration negative ions generator, which efficiently releases negative ions to purifying air, reduces static electricity, and enhances indoor air quality. Featuring advanced technology, this air purifiers boasts a quiet operation, energy saving designs, making it easy to installation and maintain. Ideal for families and office workers, especially those sensitive to air quality or suffering from allergies. Perfect for use in bedrooms, living room, and offices, this device significantly improves air quality, creating a healthy space. Make with plastic materials and internal circuit board, this air treatments appliance ensures long lasted performances and reliability. Specifications: Component:Plastic and Built-In Circuit Board Size:Approx.1.1x1.7cm/0.43x0.67inch Input Voltages: DC3.7V Color: White Package Includes: 1Pc Negative Ions Generator note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.