Comes complete with carrying case, two lead wires, 9V battery, four pre-gel electrodes and an operating manual.
Digital Muscle Stimulator Specifications:
Channels:             Dual
Waveforms:          Asymmetrical Biphasic Square Pulse
Pulse Rate:           1-150 Hz
Pulse Width:         30-260 micro-seconds
On-Time:               1-30 seconds
Off-Time:               1-30 seconds
Ramp Time:          1-6 seconds
Output Current:    0-90 mA