The Erostek MK-312BT is a must-have for anyone interested in electrostimulation
The MK-312BT started as a community project to redesign the ET-312B. It was retired several years ago. Based on the PCB V1.4 and firmware f005, the Erostek MK-312BT / ET-312BT delivers outstanding performance and reliability. Thanks to its built-in rechargeable high-capacity LiFePO4 battery (2.6Ah) and integrated BMS, the device provides up to 24 hours of runtime under full load. Charging takes only 4 to 5 hours. Larger output transformers ensure smoother stimulation at higher output levels and provide ample reserves for electrostimulation. The desktop case includes a convenient handle for easy setup and eliminates visible screws on the front panel.
Bluetooth 2.0 Serial Connectivity
This version of the MK-312BT is equipped with the proven HC-05 Bluetooth 2.0 module, providing reliable wireless serial communication with the device. Once paired, compatible software can remotely control the MK-312BT, exchange data and monitor device functions without requiring a direct USB connection.
The HC-05 uses the Bluetooth Classic (SPP) protocol and is fully compatible with Windows PCs and Android devices. It is the preferred solution for users who want wireless remote control and compatibility with existing MK-312BT software and applications.
Please note that the HC-05 is not compatible with iPhone or iPad because Apple does not support the Bluetooth Serial Port Profile (SPP), Pincode: 0000 or 1234. Users who simply want wireless audio streaming should instead choose the optional Bluetooth Audio 5.0 upgrade.
Optional Bluetooth Audio 5.0 Upgrade
For an additional charge, the MK-312BT can also be equipped with our Bluetooth Audio 5.0 module. This allows direct wireless audio streaming from iPhone, iPad, Android smartphones, tablets, laptops and other Bluetooth-enabled devices without requiring a physical audio cable. Bluetooth Audio 5.0 works independently from the HC-05 serial module and is designed specifically for all audio-reactive operating modes.
High-Quality Build for Long-Term Durability
The Erostek MK-312BT / ET312B features high-quality components designed for long-term durability. It includes three ALPS potentiometers and custom switch caps with clear markings and arrows. You can use 18 built-in routines including wave, intense, random, and 3 audio modes. Additionally, up to 6 user-defined routines can be added using the original software. The device connects easily via USB FTDI link cable. This allows you to load custom routines or remotely control the device. Full stereo audio modes enable audio-based stimulation from mono and stereo sources, including SmartStim and Phaser waveforms. Simply connect the device to a headphone output using a stereo audio cable.
Advanced Features for Maximum Customization
The microphone input allows you to incorporate ambient sound, music, or voice into stimulation using any PC-compatible microphone. The bright backlit LCD clearly displays the current mode and output levels for channels A and B, even in low-light environments. Multiple power settings provide three power ranges for finer adjustments. The MK-312BT offers a wide range of sensations with hands-free operation. The unique TriPhase output creates a third waveform between channels A and B, enabling more variation and creative electrode placement. Advanced menus allow precise fine-tuning of all parameters. The MK-312BT is a fully compatible and refined version of the legendary ET-312B.
Dimensions and Weight
Size: 200 mm × 180 mm × 68 mm
Weight: 1.6 kg
Important Information
Important for EU customers: This device falls under TARIC code 85432000 – Signal / Function Generators and is customs duty-free. We prepay the import VAT directly to the shipping company, so you pay no import VAT upon delivery. No additional costs, no surprises.
Important for US customers:
This product falls under HS code 85432000 (Signal Generators). A small import duty (usually less than 1 USD for low-value orders) may apply, and the courier might charge a minor handling fee. Sales tax is not prepaid and may be collected at delivery.
The MK-312BT started as a community project to redesign the ET-312B. It was retired several years ago. Based on the PCB V1.4 and firmware f005, the Erostek MK-312BT / ET-312BT delivers outstanding performance and reliability. Thanks to its built-in rechargeable high-capacity LiFePO4 battery (2.6Ah) and integrated BMS, the device provides up to 24 hours of runtime under full load. Charging takes only 4 to 5 hours. Larger output transformers ensure smoother stimulation at higher output levels and provide ample reserves for electrostimulation. The desktop case includes a convenient handle for easy setup and eliminates visible screws on the front panel.
Bluetooth 2.0 Serial Connectivity
This version of the MK-312BT is equipped with the proven HC-05 Bluetooth 2.0 module, providing reliable wireless serial communication with the device. Once paired, compatible software can remotely control the MK-312BT, exchange data and monitor device functions without requiring a direct USB connection.
The HC-05 uses the Bluetooth Classic (SPP) protocol and is fully compatible with Windows PCs and Android devices. It is the preferred solution for users who want wireless remote control and compatibility with existing MK-312BT software and applications.
Please note that the HC-05 is not compatible with iPhone or iPad because Apple does not support the Bluetooth Serial Port Profile (SPP), Pincode: 0000 or 1234. Users who simply want wireless audio streaming should instead choose the optional Bluetooth Audio 5.0 upgrade.
Optional Bluetooth Audio 5.0 Upgrade
For an additional charge, the MK-312BT can also be equipped with our Bluetooth Audio 5.0 module. This allows direct wireless audio streaming from iPhone, iPad, Android smartphones, tablets, laptops and other Bluetooth-enabled devices without requiring a physical audio cable. Bluetooth Audio 5.0 works independently from the HC-05 serial module and is designed specifically for all audio-reactive operating modes.
High-Quality Build for Long-Term Durability
The Erostek MK-312BT / ET312B features high-quality components designed for long-term durability. It includes three ALPS potentiometers and custom switch caps with clear markings and arrows. You can use 18 built-in routines including wave, intense, random, and 3 audio modes. Additionally, up to 6 user-defined routines can be added using the original software. The device connects easily via USB FTDI link cable. This allows you to load custom routines or remotely control the device. Full stereo audio modes enable audio-based stimulation from mono and stereo sources, including SmartStim and Phaser waveforms. Simply connect the device to a headphone output using a stereo audio cable.
Advanced Features for Maximum Customization
The microphone input allows you to incorporate ambient sound, music, or voice into stimulation using any PC-compatible microphone. The bright backlit LCD clearly displays the current mode and output levels for channels A and B, even in low-light environments. Multiple power settings provide three power ranges for finer adjustments. The MK-312BT offers a wide range of sensations with hands-free operation. The unique TriPhase output creates a third waveform between channels A and B, enabling more variation and creative electrode placement. Advanced menus allow precise fine-tuning of all parameters. The MK-312BT is a fully compatible and refined version of the legendary ET-312B.
Dimensions and Weight
Size: 200 mm × 180 mm × 68 mm
Weight: 1.6 kg
Important Information
Important for EU customers: This device falls under TARIC code 85432000 – Signal / Function Generators and is customs duty-free. We prepay the import VAT directly to the shipping company, so you pay no import VAT upon delivery. No additional costs, no surprises.
Important for US customers:
This product falls under HS code 85432000 (Signal Generators). A small import duty (usually less than 1 USD for low-value orders) may apply, and the courier might charge a minor handling fee. Sales tax is not prepaid and may be collected at delivery.
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