Ultra-strong frequency impact deep into the blind spot clean spots Ultrasonic piezoelectric ceramic plate generates ultra-strong frequency to drive water molecules to collide strongly, constantly flushing the depths of the surface crevices of the object, so that dust, bacteria, oil to achieve the decomposition and detachment. T-Air sonic cleaning does not do surface work. The use of 49000hz ultra-strong frequency driven water molecules strong collision vacuum expansion blowing, deep into the crevices of the object instantly emulsifying stripping dust and oil. 360°Without blind spot cleaning When you start cleaning, you can see the dirt is removed and the dust invisible to the naked eye, and the objects are clean as new. Product parameters: Material: 304 stainless steel Ultrasonic frequency: 49kHZ Weight: 700g Inner size: 198X103X40mm Bare machine size: 240X122.3X73.8mm Inner volume: 340ml Precautions: 1.Please consult the product seller before cleaning the precious glasses (such as track film class) or luxury jewellery, etc. to confirm whether you can use the cleaner to clean, so as not to damage. 2. Please do not wash pearls, easy to damage during cleaning.