5 Spray Modes - The wireless dual nozzle humidifier has 5 working modes: continuous flow spray, alternate spray and intermittent spray for 1 or 2 nozzles, to meet your different needs Wireless/Wired - The built-in 2000mAh battery can continue to work wirelessly for up to 10 hours and provides quick charging in 2 hours. Battery status indicator and also with USB function ready to use Timer and BPA-free materials - Optional 4 hour/8 hour auto shut-off to protect the wireless humidifier and for health reasons security. Made of BPA-free materials, ideal for the nursery and kids All-in-One Function and Quiet Design - Aromatherapy Oil Diffuser, Cool Mist Humidifier, Sound of Water air is only 28 dB, no matter who is sleeping, studying or working will not be disturbed. It can make your environment full of aroma and humidify the air. Ideal for Personal, Home, Bedroom, Plant, Office, Yoga, Travel, Baby, Office. Large Capacity and Mist - 800ml large capacity water tank ensures continuous use for the whole day. day with up to 8 hours depending on the type of spray mode used