Features
Dual channel (4-lead) digital combo TENS and muscle stim (EMS)
5 TENS modes (Burst, Normal, Modulated Width, Modulated Rate, and unique Mixed Frequency)
2 EMS modes (Simultaneous, Alternating)
27 Preset Programs (22 EMS, 5 TENS)
3 Programmable Programs with fully adjustableparameters
All digital push-button controls
Large LCD screen and text characters
Treatment timer (5-90 minutes or Continuous)
Last setting recall & settings lock
Stimulation output indicators
Compliance monitor
Low battery power indicator
Hi-tech design with metallic finish
Removable plastic belt clip
2-year warranty
Comes with 1 pkg of 4 reusable self-adhering electrodes, 1 set 43" pin lead wires, 1 each 9V heavy duty battery, carrying case, and instruction manual

Leadwire reorder # LW46SPLE 
 
Technical Specifications
Channel: Dual, isolated between channels
Amplitude: Adjustable 0 - 80 mA, Max output 100 mA peak to peak (21.2 mA rms) into 500 ohm load each channel
Output Voltage:Adjustable 0 - 50 V, Max output 50 V peak to peak (10.6V rms) into 500 ohm load each channel
Waveform: Asymmetrical rectangular biphasic pulse.
Pulse Rate: Adjustable, 2 - 20 Hz in 1 Hz/step and 20-150 Hz in 5 Hz/step
Pulse Width: Adjustable, 50µS - 300µS, 10µS/step
5 TENS Modes: Burst, Normal, Modulated Width, Modulated Rate, and Mixed Frequency
2 NMES Modes: Simultaneous or Alternating
NMES Contraction Time: Adjustable, 2 - 90 seconds, 1 sec./ step
NMES Relaxation Time: Adjustable, 2 - 90 seconds, 1 sec./ step
NMES Ramp Time: Adjustable, 1 - 8 seconds, 1 Sec./ step
Timer: Adjustable, 5 - 90 minutes or Continuous
Power Supply: One 9V battery
Size: 13.6(L) x7(W) x2.65(H)(cm)
Weight: 162 grams (including battery)