... .: ultrasonic aroma diffuser T-283 . color: blue, green, pink . 3.4 liter . strong spray . 110/220V 30W 50-60Hz ** Ultrasonic ... indicator when waterless.2. 10 hours continues whisper-quiet operation.3. Auto shut-off when water runs out for additional ... Technical Data:Input voltage:110/220V 50-60HzWater tank volume:3.4LNoise:≤35dBMoisture capacity:300ml/hRated power:30WCertificate:CE,ROHSInner packing ...