This small humidifier built-in 2000mAh rechargeable battery, full charged time is about 3h, which can be used about 8 hours for Simultaneous spray, 16 hours for Alternative spray. The rechargeable humidifier is much convenient than the USB Humidifier which need to connect the the cable all the timeThe Humidifier has a large capacity tank of 500ml and its spray amount is 45-50ml/h. And it will auto shut-off when the water level is below the probe.Nearly silent working below 30dB and the soft light offer you a comfortable and quiet environment to sleep.The rechargeable Humidifier is small size and portable, suitable for bedroom, Yoga room, home, office, car and travel etc.Enjoy cool mist air wherever you are.The portable USB humidifier is very easy to operate. One button controls all functions, you simply need to press the power button every 1 second to control the mist.Two Mist Modes:Defogging humidifier with continuous and intermittent free mode exchange. press the function button to enter the continuous spray mode, press again to intermittent mode.Name: humidifierInput voltage: DC5.0VWorking current: 300mA-500mARated power: 1.5-3WBattery capacity: 2000mah (18650-KC battery)Water tank capacity: 500mlSpray volume: 45-50ml/hCharging time: about 3 hoursTimed shutdown: continuous 8 hours, 16 hours between spraysUse time: 7 hours continuous, 13 hours between spraysColour: WhiteMaterial: ABS+PP+silicone+electronic componentsSize: 95 x 95 x 160MMPackage Contents:1 x Humidifier host1 x Type-C data cable1 x Chinese and English ManualOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.