The adapter is in the water tank!Attention:Please add water below the Max line. Before press the "MIST" button, please ensure that you have added water into the tank.Description: Mist Control Press the "Mist" button, choose the timer from 60 mins, 120 mins, 180 mins or ON. Light Control Press the "Light" button to turn on the LED light, the color will change automatically. Press the "Light" button again to fix the color. Press the "Light" button again to change color. If you need to turn it off please long press the button for one second. High/Low Control Adjust the mist intensity(beep once means strong, twice means weak)Specifications:[Applicable Area] Aromatherapy: 430 Sq ft / Humidification: 269 Sq ft [Size] 168*121mm [Weight] 520g [Input] AC 100-240V 50/60Hz [Output] DC24V 650mA [Length of power line] 170cm [Timer] 60 / 120 / 180 minutes / On [Ultrasonic Frequency] 2.4 MHz - Advanced Ultrasonic Diffusing Technology [Duration Time] Do not use for more than 10 hours.When time is up or there is no water, it will turn off automatically [Water Capacity] 500 ml [LED Light] 7 pcs - Independent Light Control / Multiple Color Light / Gradual Changing or Fixed Mode or Off. Provides soft illumination [Main Material] PP, ABSPackage Contents: 1 x 500 ml Aroma Diffuser 1 x Charger Adaptor 1 x Measuring cup for filling water 1 x User ManualNote: Oil is not included in the package