Just by adding water and a few drops of essential oils (not included), you can enjoy the aromatherapy up to 15 hours. Choose between 2 mist power level options, delicate mist for small rooms and stronger mist for large rooms. Thanks to the waterless auto-off option you can enjoy a restful sleep, and keep the diffuser on at night without worrying about it. Also, you won’t mind annoying background noise because this aromatherapy diffuser is extremely quiet. With the remote control you can select the program of use for the aromatherapy diffuser: 2 hours, 4 hours or ON (up to 15 hours). Also, with the remote control you can set the light intensity but also the flame effect - strong, low or breathing light.