General description 2 Pack Ultrasonic Atomization Maker features a 20mm diameter ultrasonic atomizer plate that produces finer particles, effectively protecting your desk or other surfaces from dampness. This device is easy to use and can operate over water, absorbent sponges, or towels, delivering a higher level of atomization. Technical specifications Atomizer diameter: 20mm Operating voltage: 3.7-12V Material: PC, metal, ceramic Measurement error: +/- 1-3cm Compatibility and accessories Widely used in ultrasonic atomization devices Compatible with USB humidifiers Suitable for perfume atomizers and aromatherapy atomizers Usage Charge the frequency sweep driver board before use Press the key to start operation Other information Package Contents: 2 x Ultrasonic Atomization Maker Note: Color may vary slightly due to lighting and display differences