Notice:For the first use, you can soak the cotton swabs for a while. Then turn the swab upside down and reinsert. You need to make sure that both ends are completely saturated.Silent Operation & USB PowerSuper Quiet Mini Humidifier as the near-silent ultrasonic mist technology generates less than 28 dB, which is quieter than a library, giving you a perfect sleep. With the USB power port, you can charge it with pc laptop and power bank.Timer Setting & Mist Control200ml Capacity - Continuous Spray Mode 8 hours can be used, automatically closed after 5 hours / Intermittent Spray Mode 16 hours can be used, automatically closed after 10 hours, it easy to adjust mist speed to fit your comfort level, provide temporary relief from coughing & congestion, dry throat, allergies, you can even use it with children and pets at home.7 Colors Night Light & 2 Lighting Modes7 colors LED night light will give you more choice to find your favorite color, offers soothing glow for maximum relaxation. Long