Tecar Therapy Diathermy Machine RET CET RF Body Paine Relief Fat Loss Skin CareFeatures 1. Double Frequency 300KHZ and 450KHZ make RET and CET really have deep and shallow differences. The deeper penetration of RET can reach 10CM without energy loss 2. High Power In terms of time, similar products are around 80W. Our maximum power is 300W, and practical power is 250W. High power means that the internal components must be of good quality. 3. Patent Appearance Unique appearence design 4. Handle Diversification Optional double 80MM