Product Description Nano-Level Atomization Technology Not only humidify your living space, but also prevent dry skin in dry seasons Multi-Color Night Light Humidifier will emit 7 colorful night lights once you continuously press the power button about 1-2 seconds. Red, Orange, Yellow, Green, Blue, Indigo and Purple freely switch Advanced Ultrasonic Technology Mini cactus humidifier adopts advanced ultrasonic mute technology, guranteeing your sleep quality Small body, large capacity 160ml Small body, large capacity Step 1 Uncover the top cover by lifting the silicone cactus Step 2 Pour water into the barrel (the maximum capacity is 160ml) Step 3 Cover the cactus lid, please do not forget to wipe the drop around the usb port and power button Step 4 Connect this humidifier to the computer or power adapter with usb cable and press the power button