Pulse rate is adjustable from 2-150 Hz.

Pulse width is selectable: 100, 200, or 300 micro-seconds.

Contraction time is adjustable from 2-30 seconds.

Relaxation time is adjustable from 1-30 seconds.

Ramp time is adjustable from 1-6 seconds.

Comes complete with carrying case, 2 lead wires, 9-volt battery, metal belt clip, 1 package of 4 pre-gelled electrodes and operating manual.

Sold by the Box.

1 Each/Box.