Unique Design: Metal Cover Tree Pattern Portable For Bedroom, Office, Spa, Kitchen And More. Whisper QuietAdvanced ultrasonic technology, extremely quiet with no annoying noise that won't bother you when you sleep or work at work. Streamlined Design with 7 LED Lights: The aromatherapy essential oil diffuser has 7 different colors. Auto shut-off and timer setting: Once the water runs out, it will shut off automatically to protect the device. Multifunctional: Aromatherapy essential oil diffuser, humidifier, relieve stress and improve sleep. Our diffusers are made of high-quality plastic that contains no harmful chemicals and does not release any harmful substances into the air. Auto power off When the water level in the tank reaches a critical low, a beep sounds. Switching power supply, safer and better for energy saving. Intermittent mist function With our oil diffuser you have the choice of continuous or 30s intermittent mist! Good for reading and sleeping.