Build your shortlist

Compare the setup you will actually use.

Start with a required feature, then check what the complete package needs. This comparison covers the STIM-SYSTEM MK312-BT build, ZC95 MKII reference design, standard 2B and original Tension Lover.

The differences at a glance

Show differences onlyAll features are shown.

Documented features: MK312-BT, ZC95 MKII, 2B and original Tension Lover
Feature	MK312-BT	ZC95 MKII	E-Stim 2B	Tension Lover
Output channels	2	4 isolated	2 isolated	2
Control emphasis	312-family controls	Built-in and custom Lua patterns	Manufacturer modes and software	Onboard pulse settings
Computer / remote route	Bluetooth; verify software	Wi-Fi or serial; firmware dependent	Optional USB Digital Link	Not documented
Audio	Audio-capable 312 platform	Line / microphone input	Stereo line / internal microphone	Not documented
Power concept	2.3 Ah rechargeable build	26650 cell / USB-C reference design	9 V battery / optional adapter	9 V battery
Custom Lua patterns	Not a documented standard feature	Supported	Not a documented standard feature	Not documented
Exact build matters	Yes	Yes	Yes	Yes
Read the matching manual	Yes	Yes	Yes	Yes

Three questions that narrow the field

How will you control it? Standalone operation, audio response and computer control are distinct workflows. For computer control, identify the required hardware interface and compatible software. For audio, distinguish a line-level source from microphone input.

Do you need four channels? The ZC95 offers four; the other devices here offer two. Extra channels are a concrete capability, but their value depends on your intended setup and the patterns you plan to use.

Do you want custom patterns? The ZC95 documents Lua scripting. If you prefer a manufacturer-defined collection of modes, compare the actual mode descriptions and controls instead of counting programme names.

Compare complete packages

A fair quotation includes the box, necessary interfaces, approved charging or power equipment, output cables and support. List included and optional items separately. For a 2B, Digital Link may affect the total setup; for a Bluetooth-equipped MK312-BT, software compatibility still requires confirmation.

On an MKII purchase, connector changes matter if you own MKI accessories. With Tension Lover, the first step is identifying the generation. A lower advertised price may refer to a different model, a smaller bundle or a used item, so this guide does not turn changing prices into a fixed ranking.

What the comparison cannot establish

No comparable bench test was performed for this guide. Published specifications do not justify a universal strongest-device claim. Matching channel counts or similar names do not demonstrate the same signal behaviour, and battery capacity alone cannot establish runtime.

Use the table to identify candidates, then consult the individual pages and linked documentation. STIM-SYSTEM has a commercial connection to some of the products; the sources below let you review the basis of the comparison yourself.

Your questions, answered

Frequently asked questions

Practical answers before you choose.

Which device has four channels?

The ZC95 platform. The other three devices in this comparison have two.

Which is the strongest?

This guide does not establish a strength ranking. That would require comparable measurements under defined conditions.

Sources & editorial approach

Edited by STIM-SYSTEM · 24 September 2026. Based on published documentation, not our own laboratory testing. Specifications depend on the build and firmware. STIM-SYSTEM sells some of the devices discussed.