Key feature 【Super Handy&Mute】Mini size to be handhold (4.5 x 4.5 x 10cm). This pocket size Atomizer is super easy to carry around. Mute work with no noise, 100% baby sleep quiet guarantee. 【Effective Atomization】Comes with fine grain during atomization, the amount of fog is large, the atomization rate is ≥0.2ml/min and the atomization particles are averaged ≤2.5um, small and delicate particles can reach the respiratory medicine directly by the throat, trachea, bronchus and alveoli Absorption, atomization efficiency increased. 【Easy to Use】Easily open the liquid cup to add liquid, install the mask or mouthpiece. Then with one simple button to operate On/OFF for atomizing. 【Multi-functional】Perfect all all ages. can be used by both kids and adults. 【100% Satisfaction Guarantee】We take pride in delivering top quality products and are proud to offer 30 day money back guarantee in case you are not 100% satisfied and wish to return the product for ANY Product description Features: portable nebulizer Quiet treatment Two airflow control Compact and portable Suitable for all ages people Specifications: Item Name: Ultrasonic Nebulizer Power: AC 100-240V Operating Voltage: DC12V Ultrasonic Frequency: 2.2MHz Size of Atomized Partice: 0.5-5 Micron Capacity Of Cup: 10ml Vessel Capacity: 25ml Automization volume 0.375ml/min: 20 mins timeing automatically Automization volume 0.5ml/min: 10 mins timeing automatically Tips: The better way use about 20-60 degrees hot water pour into big cup when you first time use it, only can be use clear water. The machine itself does not have the heating function. It must be use we sent you plug, another plug can't working, hope for understanding. This product is could charge by Usb cable . And it also support batteries , but you need buy batteries yourself . For transportation reason , batteries is not allowed to be shipped by air .