The Biotronix Konmed KM209 Stimulator for TMJ is a compact 2-channel electrical stimulation device designed to support TMJ-related pain management, muscle relaxation, muscle re-education, and mandibular movement training. It offers 3 treatment modes, 4 output waveforms, dual-channel control, adjustable stimulation, and a full-color 2.8-inch TFT display in a lightweight rechargeable design.