Operation : 1. Type-C USB as DC5V input port. 2. In the case of connecting to DC5V, the power indicator light of the plug-in model is always on. 2.1 Short press the function key for the first time to turn on the -volcano mode spray, and the default light 2.2 Short press the function key for the second time to turn on the mode spray, and the default light 2.3 Short press the button for the third time, then shut down 2.4 Long press the function button (1.5 seconds), the light switch, the order: - blue - turn off the light 3. Timing function: 3.1 Short press the timing button for the first time, the timing is 2 hours, and the corresponding 2h indicator light is on; 3.2 Short press the timing button for the second time, the timing is 4 hours, and the corresponding 4h indicator light is on; 3.3 Short press the timing button for the third time, the timing is 6 hours, and the corresponding 6h indicator light is on; (the default timing is 2 hours after booting) Shape:Classic Columnar Operation :Keyboard Type Application:11-20 Power Type:USB Humidity Control:Piano Type Use:Household Function:Aromatherapy Mist Outlet : One/a Classification:Humidification Timing Function:Yes Water-shortage Power-off Protection:Yes Installation:USB Type:Ultrasonic Humidifier Noise: Less than 36db Humidification :Mist Discharge Capacity: Less than 1L Voltage (V):5V Power (W):5w color:White Material:ABS size:110 x 135.5mm Package Contents: 1 x diffuser 1 x usb cable 5 x filter cotton Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.