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Limited Availability

ET312B availability will be posted here and announced on our Twitter account.

For an excellent alternative, check out the 2B Premium Pack.





Powerful yet Precise

The ET312B is powerful yet precise. Feature-rich and intuitively easy to use. There is no other power unit like the ET312B anywhere. Mention the ET312B to anyone into e-stim. They'll know what you're talking about.

Designed and Made in the USA!

Video: See it in Action — Stim Show: Episode 1

Unique Features:

Built-in rechargeable high-capacity battery for up to 24 hours of non-stop stimulation... you'll need sleep before it does!

18 built-in routines including waves, intense, random, and 3 audio modes.

Up to 6 user-selectable routines can be added using the optional ErosLink software.

Full Stereo Audio modes allow audio based stimulation from mono and stereo sources (including SmartStim and Phaser waveforms).

modes allow audio based stimulation from mono and stereo sources (including SmartStim and Phaser waveforms). Included microphone turns ambient sounds, music, or your voice into stimulation. Also works with your computer, iPod, CD player or any other stereo playback device using a standard audio cable (included).

Easy-to-read Backlit LCD displays current mode and output settings for channels A and B even in the dark.

Backlit displays current mode and output settings for channels A and B even in the dark. Multiple Power Settings : 3 power ranges allow a finer adjustment of output level, from mild to wild!

: 3 power ranges allow a finer adjustment of output level, from mild to wild! Microprocessor-based sessions allow hands-free stimulation. Like feeling a song instead of monotonous single pitch.

Unique TriPhase output creates a third stimulus waveform between channels A and B for even more variety and creative electrode placements. See our TriPhase Adapter for more information.

2 sets of 52" Long Output Leadwires

Optional Bananas to Pins Adapters are available for TENS / 2mm accessories (not included)

Universal AC Adapter includes plugs for USA/Canada, EU and UK. Lightweight and ideal for travel. Can be used in other countries with a simple mains plug adapter. 100 - 240VAC.

ErosTek 1-Year Limited Warranty

Measures 8.0" x 6.5" x 2.5" (203 mm x 165 mm x 64 mm)

Weighs 4 pounds (1.8 kg)

Download the Updated ET312B User Guide.