Key Specifications/Special Features: Working voltage: AC 220V ?0 Working frequency: 15kHz Working current: 8A Output power: 2,200W Weight: 75kg Dimensions: 65 x 41 x 102cm Working temperature: 0 to 40˚C Working mode: intermit Product feature: Manual operate Economic and working stable Very convenient to adjust with the use of limited screw Upper balance mode made it simple to adjust Adopts ultrasonic technology Stable power supply Current and voltage protection system Low failure rate Save space and easy to be moved