specification: Material: Stainless steel + ABS Capacity: 250 ml Food: 4 AAA batteries (not included). Detection range: 0 ~ 100 mm Dissemination content: 1 x Automatic soap dispenser 2 vaporizers of 30 ml Operation method: Step 1. Open the lower lid and insert 4 new AAA batteries. Close the plugin. Step 2. Tighten the upper nut. When first use, add water to evacuate air under vacuum. Fill or fill the liquid soap container. Turn to close the upper nut. Step 3. Press and hold the power button on the top for 3 seconds - you will see a flashing red light - the unit is now lit, if you want to turn off the unit, press and hold the unit for 3 seconds. Step 4. Place your hands under the dispenser and the pump will distribute soap. Automatic soap dispenser: equipped with an infrared motion sensor, once the sensor detects your hand, the soap dispenser automatically releases the hand disinfectant. Suitable for bathroom, kitchen, coffee or hotel. There is a button on the upper surface. 250 ml