Features:-Just press the button on the top to choose between 4 different gel amounts, so you can easily adjust the amount of gel to suit everyone's needs.-The soap dispenser uses advanced smart infrared sensor technology, put your hand at the outlet, it will quickly dispense gel in 0.25 seconds.-There are two installation methods: desktop bracket and wall-mounted installation for you to choose from. Can be hung on the wall without tools or drilling, or you can place it directly on your desk.-Built-in 500mAh battery, after fully charged, it can be used continuously for more than 3 months. When the number of indicator lights decreases, it means the battery is low and reminds you to charge.-Compatible with a variety of liquids, including hand soap, detergen.