... frequency .3: According to different disorders with various specific waveform.4: Combined into 20 kinds of automatic procedures for prescribing, Make ... Current source AC220V±10%, 50Hz ± 2% 3, Power dissipation≤80VA 4, Continuous working time ≥4hr 5, Output current 0~90mA 6 ... 5Kg(with trolley ) rough weight :21kg 20, Number of output channels 4 channels Computer intermediate frequency therapy apparatus