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 in (H) x 14.5 in (D) x l0 in (L), (12.7cm (H) x 36.8 cm (D) x 25.4cm (L)) Warranty: 2 years NOTE: This device is a controlled by the Food and Drug Admistration (FDA) and can only be sold to a licensed Purchaser or have a Prescription for Device. Verification must be provided to ship unit !!