Interferential stimulator with two channels offering fixed and sweep frequency modes. Includes: stimulator, lead wires (new FDA compliant), 4 self-adhesive reusable electrodes(2"x2"), hard plastic carrying case, 9 volt battery, 120 volt AC adapter, and instructions.

• Dual Channel
• Multi-Mode Selector Switch
• Electrode Switch
• Power-on Indicator Light
• Low Battery Light
• Frequency Control
• Amplitude Control
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Specifications: Carrier Frequency: (4000 +/- 10%) Hz, fixed. Difference Frequency: (1+/- 0.5)~(150 +/- 10%)Hz, adjustable. Output Voltage: (16 +/- 2.5)Volts. (500 ohm Loading). Waveform: Symmetric biphasic square. Pulse Width: (125 +/- 10%) microseconds for each phase. Power Source: 9V alkaline battery or adapter. Four Frequency Shift: Continuous, 1/1 abrupt, 8/8 abrupt, 10/10 ramped Options. All values have 10% +/- tolerance