About this item Its weight: 225g. The noise is less than 25dB. Lightweight and portable. One button start，easy to use. Portable Ultrasonic Mini Nebulizer Inhaler Children Adult Rechargeable Handheld Description: Condition: 100% brand new & high quality Residual amount of liquid: ≤0.5mL Atomization speed: ≥0.2ml/min Atomized particles: 15μm Cup capacity: minimum of about 0.5mL maximum 8mL Noise: ≤50dB(A) Operating frequency: 120KHz ± 10% Power consumption: 2.0W Power configuration: DC5V/1000mA USB power adapter cable or 2*1.5V (2 AA alkaline No. 5, product does not contain battery Material: ABS+PP Color: coffee, blue Product features: 1. Scientific design: Handheld network type, compact and light, easy to carry out, easy to atomize anytime, anywhere 2. Fine particles: large fog, fine atomized particles, particles can reach 1-5μm, drug absorption is more sufficient 3. Fast speed: microporous spray film, atomization speed ≥0.2ml/min 4. More silent: through the piezoelectric components, the noise design is quieter 5. Less residue: residual liquid solution ≤ 0.5ml, economical use 6. Atomization mode: Two kinds of atomization methods can be selected depending on the situation, that is, mask atomization (divided into human and child masks) and mouthpiece atomization 7. Flashing light: green light indicates normal operation, red light indicates battery is low or low voltage 8. Energy saving and environmental protection: the mask is comfortable, skin-friendly and environmental