The Tens AA is a unique digital Tens device that uses AA batteries, 5 treatment modes and a large LCD Screen. The Tens AA has a recall program and is easy for anyone to use. This unit is a great digital unit with a variety of programs at a great * Two Selectable Waveforms:Symmetncal Diphasic or Monophasic * Five Treatment Modes: Constant, Burst I, Burst II, Modulated Width, Modulated Rate & Width * Large LCD display showing all parameters * Last-Used Program Recall * Parameter Locking * Treatment Timer

Technical Specs * Channel: Dual * Amplitude: Maximum 150mA (peak value) across 500 ohm load * Waveform: Symmetrical Biphasic, or Monophasic * Pulse Rate: Adjustable, 1 - 150 Hz * Pulse Width Adjustable, 50 - 250 (in steps of 10) * Treatment Timer: 15, 30, 45, 60, or 90 minutes, or Continuous * Treatment Modes: Constant, Burst I, Burst II, Modulated Width, Modulated Rate & Width * Power Supply: 2 AA alkaline batteries 1.5 V * Kit contains: Ultima 5 unit, Safety lead wires, 4 reusable electrodes, 2AA alkaline batteries, compact carrying case, and manual