Primera TENS/NMES with HAN Waveform, Dual Channel. Extensive range of programs 8 TENS and 6 NMES Programs. The HAN TENS Waveform, further differentiates PRIMERA from the rest. The PRIMERA features a proven circuit with over 10 years of reliable performance. Complete package includes: PRIMERA Unit, Carrying Case, Battery, Leadwires, Dura-Stick Electrodes, Back Support Belt and Users Manual, Two-year Warranty.