E-Stim E-box Series 2B Kit

If you're looking for more power, more control and more versatility, then the E-Stim Series 2B should be your only choice. E-Stim have retained many features from the ever-popular Series 2 unit but added some great new tricks including:

Two isolated channels with independent controls - e.g. use multiple bipolar electrodes at the same time.

New throb and thrust functions - hours of e-stim pleasure.
Soft start controls, so power resets to 0% when changing modes or switching the unit on.
Built-in microphone; 3.5 mm stereo audio input.
Improved backlit display is easier to read and shows you exactly what's going on.
Uses a single 9V battery; and takes rechargeable batteries as well.

You have been warned: the Series 2B is considerably more powerful than any of E-Stim's other control units.