Review on 🌬️ Airdog Aroma Diffuser: Ultrasonic Humidifier, Bluetooth Speaker & Essential Oil Mist - Quiet, Safe, & Stylish with 200ml Water Tank in Wood Finish by John Clarey

Works great and has 1 hour, 3 hour or 5 hour settings. You can also run it continuously or blow at intervals. It also oscillates between colors for a more beautiful night light effect. I haven't used the Bluetooth feature and no instructions were provided on how to use it so I can't comment on the feature but other than that I like everything else. The reservoir seems to last about 5 hours if left on all the time. If necessary, it switches off automatically.