The Green Lion Portable Nebulizer is compact and designed as a go-anywhere solution for your respiratory relief, fit for deeper medication to help manage asthma, relieve allergies, and alleviate cough. It runs on two AA batteries, not included, or via an external power source, whichever you can have at the time of need as an option for dual power. The nebulizer will work perfectly with 3V and 300mA current, which is efficient for medication. It creates a fine mist that reaches deep into the lungs, forming a base for effective treatment. It will work wonders in varied temperatures, from 5°C to 40°C; thus, it's ready for almost all kinds of environments. An LED indicator keeps you updated about the operating status, and the light weight makes it easy to carry. Experience the most convenient respiratory care anywhere and anytime with the Green Lion Portable Nebulizer for uncompromised respiratory wellness. Specification ?Material: ABS Battery: 2 × AA (Not Included) Power: 3V 300mA USB Port: Type-C Vibration Frequency: 100KHz ± 10% Noise Level: ?50dB Operating Temperature: 5°C ~ 40°C Relative Humidity: ?80% RH Features Deeper Medication Asthma Treatment Allergy Relief Cough Relief Fine Mist LED Indicator Easy To Carry Dual Power Supply