Specification Material: ABS Battery: 900mAh Power: 1.5W Charging Port: Type-C Vibration Frequency: 108KHz ± 10% Noise Level: ≥25dB Operating Temperature: 5°C ~ 40°C Relative Humidity: ≤80% RH Charging Time: 1.5 Hours Working Time: 3-4 Hours Features Deeper Medication Asthma Treatment Allergy Relief Cough Relief Fine Mist LED Indicator Easy To Carry Type-C Charging