✅ ARVIDSSON 500ml Ultrasonic Diffuser provides a customized aromatherapy experience with an elegant Moroccan design that will elevate any home décor. With longer run times and various light modes, this diffuser will let you experience essential oils in a whole new way. ✅ Low Noise Operation: The ultrasonic frequency generates waves at 2.4 million times per second with a lower noise operation, releasing essential oil molecules into the air to help create a relaxing, spa-like atmosphere in your home or office. ✅ Timer Setting & Auto Shut-off: Our 500ml metal oil diffuser has the timer setting for 1 hours, 3 hours and 6 hours, that allows you to set how long your diffuser will run. The diffuser will turn off automatically when end to the timer or run out of water, so you can use it anytime. ✅ Easily customize your aromatherapy experience to fit any mood with different light settings, transitions gently from one color to the next when in light cycle mode. The lights can be turned on or off independent of diffuser function. ✅ BPA Free & Easy to Clean: ARVIDSSON essential oil diffuser is made of high quality and BPA free materials, ensuring the safety and health of your family and the environment. This oil diffuser is easy to use and the 500ml water tank is easy to clean, to simplify your aroma experience