The 312 platform
MK312-BT: familiar controls, a connected approach.
The MK312-BT carries the technical heritage of the 312 family into a Bluetooth-equipped implementation. The exact build still matters.
What the name tells you—and what it does not
MK312-BT is associated with the reverse-engineered ET312 design family. It should not be described as an original Erostek ET312B or as a product manufactured by Erostek. For a buyer, this means that the supplier, construction and support arrangements deserve as much attention as the familiar appearance.
The STIM-SYSTEM version described here has two output channels, Bluetooth and a 2.3 Ah rechargeable battery. Those details refer to that specific offer. Variations in spelling, such as MK312, MK-312BT and MK312-BT, do not establish that every advertised unit contains identical hardware.
Plan the complete control setup
Begin by deciding whether you need only the front-panel controls or also a connection to a computer. For remote operation, ask which software, Bluetooth connection method and operating systems the seller supports. Do not assume that a product with Bluetooth automatically works with every phone application.
Keep audio and data connections separate in your checklist. An audio signal drives an audio-responsive mode; a data connection carries control commands. A plug that physically fits is not proof of matching pin assignments or electrical levels. Use the device-specific documentation when selecting cables.
How to compare it with the alternatives
The ZC95 is the more relevant comparison when you are interested in four channels and custom Lua patterns. The 2B offers a different manufacturer software ecosystem, with an optional Digital Link interface. The original Tension Lover focuses on onboard programmes and pulse settings.
For a practical quotation, request the exact device revision, charging equipment, output leads, documentation and support contact together. Battery capacity alone does not provide a reliable runtime comparison across different devices, and a shared design heritage does not guarantee identical output behaviour.
The ET312B connection in context
The original ET312B already had a rechargeable power concept and computer-control capability. Bluetooth is therefore best understood as a change to the connection method in this implementation, rather than the invention of remote control for the entire 312 family. Read the development history for the wider context.
Your questions, answered
Frequently asked questions
Practical answers before you choose.
Does BT guarantee phone-app support?
No. Confirm the supported software and operating system for the exact build before buying.
Is this an ET312B replacement made by Erostek?
No. It is a separate implementation from the 312 design family, with its own supplier and support arrangements.
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.