Stimulator output current is fully adjustable from 0-70 mA

Switch functions:

• Double burst: 2 60-ms bursts of 50 Hz separated by .75 s

• Twitch: 1 pulse per second 

• Tetanus: 50 Hz (50 pulses/s) or 100 Hz (100 pulses/s)

• Built-in train of four: 4 pulses in a period of 2 seconds 

Stimulus pulse: square wave monophasic pulses (200-μs duration)

LED (green) battery light indicates that the unit is on, flashes on low battery

LED (red) flashes with audible indicator sounds each time a stimulus pulse is generated

Lightweight: 0.25lbs including battery

Standard battery: 9 volt alkaline

Nerve stimulator includes battery, ball electrodes, 6' lead with clips (snap version sold separately)pft-filter