describe:1. Two mist modes: This compact ultrasonic humidifier has two modes. When you press the button for the first time, it will spray continuously for 4 hours. Press it again and it will spray intermittently (pause for 3 seconds) for 8 hours. Portable tabletop humidifiers are battery powered and rechargeable.2.7-color LED light: Press and hold the button for 1.5 seconds, the light will change automatically. Press again for 1.5 seconds to set the light to a specific color. Press the third time to turn off the colorful lights.3. Safety Protection: This portable desktop humidifier can hold 350ml of water and can last for about 8-14 hours. Once the water runs out, it will automatically shut down to protect the device. This compact ultrasonic humidifier also features a sealing ring design with no side leakage.4. One-button control: One-button control all functions of this personal air humidifier, you only need to press one button to set the mist and light color, very easy to operate.5. Premium material and warm gift: The tabletop humidifier is made of ultra-durable ABS material for long-lasting usability. It's designed to perfectly match every occasion. A great gift for men or women on important occasions such as birthdays, holidays and housewarmings.SpecificationWorking voltage: DC5VPower usage: 2.5WCharging time: 2HBottle capacity: 350MLSpray volume: 25-40ml/hProduct size: 77*77*165mm (3*3*6.5 inches)Material: ABS + PP + siliconeNotice1. Do not use without water to prevent damage to the machine.2. Do not add oily oil to prevent the oil from clogging the atomizer.3. Do not rinse directly with the faucet to avoid short circuit of the desk humidifier.