Winstim is 4/2 channel electro-therapy and ultrasound combination device which can provide 4 pole and 2 pole interferential treatment as well as a wide range of other electrical stimulation waveforms. Therapeutic voltage and current waveforms may be applied to a wide range of conditions with successful outcomes. These include acute and subacute traumatic and infiammatory conditions, chronic rheumatoid and arthritic conditions and for pain relief.