Only Nebulizer Packing list: 1 x for Adult 1 x for Kids 1 x Mouthpiece 1 x Lanyard Nebulizer Set Packing list: 1x Main unit (without AA battery) 1x for Adult 1x for Kids 1x Mouthpiece 1x Storage bag 1x Lanyard 1x DC cable 1x Packing box Advantage: ★The nebulizer is a device specially used to treat upper respiratory diseases, such as cold, fever, cough, phlegm, asthma, sore throat, pharyngitis, rhinitis, bronchitis, pneumonia and other diseases. ★The drug enters the respiratory tract and the lungs by breathing inhalation and reaches the affected part, so the atomization treatment works faster than the oral medication. ★And because the drug directly enters the respiratory tract, its dosage is only one-tenth of that of oral administration, which significantly reduces the side effects of the drug, which is especially important for children and the elderly. Therefore, the atomization treatment has a quick effect and high safety. Technical indicators: Power supply: USB powered or 2*AA battery (not included) Oscillation frequency: 113kHz ± 10% Atomization rate: ≥0.2ml/min. Atomized particles: 3.7μm ± 25% Capacity: 8 ml Noise: <50db Product weight: 100g Dimensions (length × width × height): 50x48x130mm/2x1.9x5.1inch Housing material: ABS Working conditions: Temperature: + 5 ° C ~ + 40 ° C; Relative humidity: <80% (no condensation) Storage and transportation conditions: Working conditions: temperature: -10 ° C ~ + 45 ° C; Relative humidity: <80% (no condensation)