Sys*Stim® 226 The Sys*Stim 226 provides the flexibility to meet virtually any clinical need and has unprecedented ease of operation. Clinicians can choose from a broad range of waveforms, including Interferential, Pre-modulation, Medium Frequency and Biphasic with adjustable phase duration and frequency. Additional versatility is provided by a selection of treatment modes that include Surge, Reciprocation, Surge with Reciprocation and Vector Rotation. The Sys*Stim 226 can be set up in the two-timer mode so two separate treatment protocols may be run simultaneously. Weight: 4.8 pounds (2.2 kg.) Dimensions: 4.3 in (H) x 6 in (D) x 13.4 in (L), (11 cm (H) x 15 cm (D) x 34 cm (L)) Warranty: 2 years