LOW NOISE - Ultrasonic technology make sure that your work or sleep will not be interfered by it. The humidifier is so Whisper-quiet with elegant mist, ECO- FRIENDLY - Environmental friendly ABS and PP, nontoxic, odour-free, corrosion resistant and durable., EASY TO USE: You just fill up the cup with water, after the internal filter is soaked, plug the device into your USB port and press the on/off button., It can be powered by power bank/PC/Laptop/USB Charger and other devices with 5V 1A, it can also be placed anywhere, very convenient to carry and easy to operate, COLORFUL NIGHT LIGHT - The diffuser has 7 colored LEDs for a beautiful, soothing atmosphere or the use as night light
