【780ml Capacity】Lasts up to 9-18 hours. Meet your daily water needs and change the water once a day to keep healthy. The ultra-fine water mist will not wet the table top, and the open water tank filling design makes it easy to fill and clean. If you have any questions about this humidifier, please contact us directly. 【Safety and Auto Shut-off】The humidifier has 2 built-in water level probes, when the water level is below the safe water level, LED indicator flashes to remind and automatically turn off the spray to eliminate safety hazards. 【Wireless Mode】Can be used wirelessly or charged by USB. Large capacity battery design, a full charge can last 4-8 hours. When the battery is fully charged, the LED light will stop displaying. 【Quiet and Portable】 The ultrasonic humidifier works below 25dB Whisper’s quiet and soothing night light helps you, and your child, to fall asleep. The portable and space-saving design makes it suitable for your bedroom at home, keeping your skin hydrated and