Features: brand new and high quality Low driving voltage, low power consumption, low impedance, stable waveform and high conversion efficiency. Low dielectric loss, low heat generation, corrosion resistance, acid and alkali resistance, and long service life. Ultrasonic atomization board provides finer particles, which can well protect your desk or other platform from moisture. It works well on water, absorbent sponges or towels, with finer particles and higher spray volume. It is widely used in ultrasonic atomization equipment, USB humidifier, perfume atomizer, aromatherapy atomizer and other atomization equipment. Specifications: Material: Metal Size: Approx. 3.5x1.9cm/1.37x0.74inch Rated Voltage: for DC 5V Rated Power: 1-2W Noise: 36db or Less Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Atomization Module