⚡MK-312BT.com
E-STIM REFERENCE • DEVICE HISTORY • COMPARISON

Understand the 312 family and the devices that came after it

MK-312BT.com is an English-language reference site for five well-known e-stim devices. Instead of repeating product listings, it focuses on architecture, control concepts, historical context and practical differences.

Compare all devicesExplore the 312 timeline
5 device guides 2 timelines 1 side-by-side matrix
DEVICE LIBRARY

Choose a platform to explore

Each landing page uses a different editorial angle: product concept, core hardware, control method, place in the market and links to relevant history.

Two channels · Bluetooth · 312-inspired architecture

MK-312BT

The MK-312BT brings the familiar two-channel, pattern-driven 312 approach into a newer hardware platform with wireless control. It is aimed at users who want the character of classic 312-style operation without relying on discontinued original hardware.

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Four isolated channels · Wi-Fi · Bluetooth · Lua

ZC95 MKII

The ZC95 MKII takes the 312-inspired idea in a different direction. Instead of staying with two outputs, it adds four isolated channels and a wider control layer built around wireless access, triggering and user-programmable Lua behavior.

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Original reference · two channels · discontinued classic

ErosTek ET312B

The ErosTek ET312B became one of the best-known digital e-stim boxes of its era. Its combination of dual-channel control, digital patterns, display-driven operation and link/audio features influenced a number of later projects.

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Two isolated channels · 17 modes · audio capability

E-Stim Systems 2B

The E-Stim Systems 2B follows its own design lineage rather than the ET312 family. It combines two isolated channels with a built-in display, multiple program modes, audio processing and optional computer connectivity.

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Compact format · two channels · ten programs

Mystim Tension Lover 2

The Tension Lover 2 is a compact two-channel stimulator that focuses on conventional program selection and adjustable pulse parameters rather than a large remote-control ecosystem.

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TWO DISTINCT STORYLINES

One lineage starts with ET312. The other expands the idea to four channels.

The ErosTek ET312/ET312B established the reference point for digital two-channel operation. Later 312-inspired projects kept many of those ideas while using newer components. The ZC95 family follows a separate development path, taking inspiration from the broader 312 ecosystem but adding four isolated outputs, wireless control and scripting.

ET312 → MK-312BTZC95 MKI → MKII
1999ET312B development dates back to this period
2021Original ET312B production was discontinued
2021ZC95 MKI became publicly available as a project
MKIIZC95 moved to a smaller, more integrated hardware design
EDITORIAL APPROACH

Why this site is not just an English copy of the German version

The .com edition is written as a separate English reference publication. Its navigation, page slugs, headings, paragraph structure, comparison copy and search snippets are intentionally different. The goal is to serve English-language searches with content created for that audience instead of mechanically translating the German pages.

What the comparison covers

The comparison concentrates on channel count, isolation, wireless control, audio functions, scripting, power source and overall product concept. It avoids turning feature count into a universal ranking, because the best fit depends on the way a device is intended to be controlled and used.

CURRENT PRODUCTS & ACCESSORIES

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