The E-Stim 2B Pro Pack is exactly what you want for the more experienced or advanced estim user, or if you are a beginner who wants it all! The pack includes a 2B Digital E-Stim Controller, Digital Link Interface, 2-4mm Cables, Stereo Audio Link Cable, Audio Stim CD, a PP3 Battery, and a Manual.
The Digital E-Stim controller boasts dual isolated output channels, multiple adjustable program modes, selectable power levels with 0-100% intensity control, built in microphone and stereo audio inputs, universal power supply, back lit LCD screen, PC/MAC and WEB/Internet control, and is upgradeable. Is also wil connect with MP3 players, I phones, ect.
Not that you will need it, but the power box has a Lifetime Guarantee!
Naturally you can use the controls on the unit, but you can even control this unit from a digital interface on a PC or MAC using the free Commander software which comes with the 2B Pro Pack, and because of that you can even set it up the Commander Software so that someone else can control it remotely if you have 2 computers connected through an internet connection. This unit is the only one that offers this feature. You can also update the firmware on this unit for free over the internet to keep it up to date with new features.