The Sys*Stim 294 is a four channel neuromuscular stimulator with six stimulation waveforms: Interferential Premodulated Medium Frequency Biphasic High Volt and Microcurrent * Up to four different treatment protocols may be run simultaneously giving maximum treatment flexibility * The Sys*Stim 294 has soft-touch control knobs to allow the clinician to adjust the stimulation intensity with confidence * Weight: 9.4 pounds (4.3 kg) * Dimensions: 5 H x 14.5 D x l0 L * Warranty: 2 years *