ULTRASONIC COOL MIST TECHNOLOGY: Adopted Ultrasonic Cool Mist Technology, No noisy voice. It will not interfere with your sleep or work, with environmentally friendly material. HELPFUL FOR YOUR HEALTHEffectively improve indoor air condition. Increase humidity and also help prevent dry and chapped skin in dry seasons with no noise, lift your spirits and relieve stress. AUTO SHUTDOWN TECHNOLOGY: No Built-in Battery, USB Powered. 4 hours automatic power-off protection. When the water runs out, it automatically stops running. EASY TO USE: Open the silicone cactus top, pour the pure water into it (The capacity of the humidifier is up to 160ml), close the lid, connect it to PC, mobile battery, etc. with a USB cable and press the button. SUITABLE FOR ANY OCCASIONCute cactus shape and vibrant color will bring happiness to your room, desk, office, car. It will be a fabulous Christmas or birthday gift for your relatives, friends and colleagues. Basic Information Color: White Product weight: 180g Capacity: 280ml Function : Increase Humidity & Night Light Product Size: 130mm * 80mm * 80mm/5.12"x3.15"x3.15" Input interface: Micro USB Rated voltage: DC 5V Rated current: 0.5A Rated power: 1.5-2W Spray: 50ML / H Notes 1. This humidifier specializes in enhancing indoor humidity. Please do not add essential oil or water carrying impurity substance into this humidifier otherwise the cotton swab might be blocked causing this device does not work normally; 2. When used for the first time, please gently take out the built-in cotton swab, soak it fully and then put it in the catheter. (There comes with a extra cotton swab to replace it in case the built-in cotton swab was dirty or blocked); 3. Please make sure that there is enough water to gurantee the humidifier works normally. Please do not exceed the maximum capacity; 4. If there exists water drop around the usb port, please remember to wipe the drop away before start up the humidifier; 5. When re-used after a long time, you need to soak the cotton rod again. 6. Please don't flip over the diffuser when using it, the water will be spilled out from the humidifier through the gap of the lid; 7. Adopt the advanced intelligent technology, there are 4 hours automatic power-off protection preventing you from forgetting to shut down the humidifier; 8. Ultrasonic operation and ultra-silence design prevent you and your family from noise and radiation. The lovely silicone cactus design perfect match your home or office. Easy to Use 1.Unscrew the silicone cactus top cover; 2.Pour the pure water into the barrel; 3.Close the lid and tight it; 4.Connect it to the laptop, power bank and power adapter etc with the USB cable and press the button. If you want to light it up, please press the button about 3 seconds.