3+ hour spray time. Use as a humidifier by adding water only. Add no more than 1 to 2 drops of essential oil (not included) to water to use as a diffuser. Wipe the inside of the diffuser between uses to prevent oil build up. . Continuous or intermittent spray options. Press power button once for continuous, press a second time for intermittent, and a third time to turn off. Optional 7 color changing light function on the thin ring around the item. Press and hold power button for 3 seconds to turn on or off. Individually gift boxes. For first use, please take out the swab rod (keep the spring) and let the swab rod soak in water about 1-2 minutes, then install to used. 2 swab rods included. USB power cable included. User manual included.