Smart Scent Air Machine Diffusers Large Area Aromatherapy Diffuser Essential Oil Scent with Smart App Control for Hotel Home Spa Office Air Machine 2000ml (US Plug 110V): US Plug 110V Intelligent APP Control: The smart scent air machine supports one touch network configuration of the intelligent APP and is also equipped with AP hotspot mode, which can be used without WiFi. Dynamic Oil Level Light and 5 Working Mode: The fragrance air machine displays different colors of breathing lights based on the oil level, with a 24 hour timing function and 5 working modes. Multifunctional: The scent air machine is designed with