SENSOR CONTROL : This automatic soap dispenser uses advanced infrared sensor technology to dispense foam in as little as 0.25 seconds without touching. This keeps the device clean and hand washing becomes more comfortable and user-friendly. Foam output 0-6 cm range IR induction, automatic work. EASY TO USE : The M9 foam soap dispenser has two LED indicators on the top to indicate foam mode. With the button on the top, long press to turn the device on or off, short press to change the size of the foam outlet, you can easily choose between the two foam output modes. When the machine is turned on, press the switch 3 times in a row to use the automatic cleaning mode. IPX6 WATERPROOF : The contactless soap dispenser is waterproof to IPX6 standards and has a protective cover on the USB-C charging port to reliably protect the device from external influences. The built-in 500mAh battery can be easily charged via USB Type-C without replacement. Long standby time reduces the amount of charging