Includes carrying case, lead wires, 9V rechargeable battery, electrodes and an operating manual.

Performa TENS Unit Technical Specifications:
Channels:             Dual, isolated between channels
Waveform:            Asymmetrical Bi-Phasic Square Wave
Pulse Amplitude: Adjustable 0-80 Ma
Pulse Rate:           2Hz – 150Hz
Pulse Amplitude: 30ms-260ms
Timer:                    30 min., 60 min.
Modes:                   Continuous, Burst, and Modulation
Output Voltage:    0-100 volts (open circuit)