Ultrasonic cleaner use high frequency ultrasound as a very effective method to clean objects with surfaces that are hard to reach and clean using the normal way. You will only need to fill it with pure water and turn it on to start cleaning. - Frequency: 46KHz - Power: 40W - Timer: 180s/300s/400s/90s - Voltage: 220V (Safety Mark plug provided) Note: This is real ultrasonic cleaner, not those few dollars ones that produce vibration that doesn't clean at all. Important: please read the warnings and the instruction manual before using, otherwise it may cause fire or injury. For Self Collection: Please chat with us to make appointment for self collection.