Uses a 9V battery or the included AC adapter. Includes four reusable electrodes, two sets of lead wires, carrying case, and instruction manual.

Interspec IF Specification:
Channels:                             Dual
Waveform:                            Symmetrical Balanced sine wave
Pulse Width:                         125 µseconds
Max. Charge per Pulse:     12.5 µcoulombs
Treatment Timer:                 20 minutes
Output Configuration:         Quadrapolar (4 electrodes) true interferential
Carrier Frequency:              4000 Hz, Fixed (2 channels)
Interference Frequency:     4 – 400 bps, adjustable (1 channel)
4 Auto Sweep Range:         Constant 4-45 bps, 80-150 bps, 4 – dial setting
Sweep Timer:                       15 seconds
Output Current:                    0-66 mA peak into a 500 ohms load