Ultrasonic Humidifier Diffuser Colorful LED Light Home Office Mist Maker Air Purifier Features: Adopting ultrasonic technology, this diffuser is extremely quiet when working which won't disturb you to ensure a good sleep or normal work. Evaporate the water and increase air moisture, creating a comfortable and fresh indoor environment. With colorful light, it looks very dreamlike and romantic and you can change light mode by pressing "light" button, also can serve as a night light. Different mist time setting mode can be adjusted according to actual requirement. With automatic protection of lacking water, safe and reliable. Specifications: Condition: Material: PP Shell Color: White Power: 11W Adapter Cable Length: approx. 180cm / 5.91ft Water Tank Capacity: 100mL Bead Quantity: 3pcs LED Light Color: Colorful Noise: < 36dB Application Area: 10~20m2 Ultrasonic Technology Frequency: 2.4MHZ Size: approx. 100 x 140mm / 3.94 x 5.51inch Weight: approx. 366g Package Included: 1 x Diffuser Using Instruction: Colorful light function: press "light" once for 7 colors changing light effect;  press twice to lock the current light color; press third to shift the current color; long press to turn off light. Mist mode: press "mist" once to set time of 3 hours; press twice for continuous mist;  press third for intermittent mist(every 30 seconds); long press to turn off mist function.