Interferential electro, Therapy uses electrical pulses to stimulate nerves and muscles in to help, The body relieve pain. Size specifications expressed in l x h 149 mm, 354 mmweight5 Weight, X d 358 mm: kg; runs on 220 volts AC at 50Hz; draws 50 watts; designed with a 1 amp fuse; suitable room temperature: 10°C to 40°C; moisture content: 10% to 40%displaylcd large 20 x 4preset program50customize Output current up to 50mA showcased on a digital display for channels CH1 and CH2, Operating at carrier frequencies of 2 kHz and 4 kHz, With a base AMF of 1, 150 hzspectrum01, 150 hztherapy mode4 traditional polo design, Four polo vector graphics 2 pole modulatedtimer60 min. Cable & electrode testavailabletens modecontinuous / bursttens output150 v peak to peaktens frequency1 to 250 hz stapes of hzburst1, 2, 3, 4 & 5 hz