Includes four reusable electrodes, lead wires, 9V battery and instruction manual.

TENS Unit Impulse 2000 Specifications:
Channels:             Dual
Waveform:            Asymmetrical Rectangular Bi-Phasic
Modes:                   Continuous, Burst, P.W modulation
Pulse Rate:           Adjustable 2-150 Hz
Pulse With:            Adjustable 50-250 µs
Output Current:    Intensity adjustable 0-80 Ma peak to peak
Output Voltage:    0-40v peak to peak