Product information: Power supply mode: USB plug-in Functions: humidification, aromatherapy, ultrasound Shape: round Noise: below 36dB Timing function: 2-8 hours Water tank capacity: 0.5L and below Water shortage and power failure protection: Yes Operation mode: mechanical Color: white Style: creative style, simple style Type: fogged Built in battery or not: no battery Material: ABS/PP/hardware/electronic components Power interface: DC interface Input voltage: DC5V Operating power: 5~6W Water tank capacity: 360mL Spray volume: 20~30ML/H Product size: 150 * 150 * 132MM Packing list: One host, one charging line, two manuals (one in Chinese and one in English), and one package of salt stone