Biothm Vagus Nerve Stimulator, Dual-Site Wellness Wearable with Neck & Ear Stimulation — VNTune Fit Pro

Two Stimulation Sites. One Wearable.

Meet VNTune Fit Pro, the upgraded Fit wearable with support for both neck stimulation and left-ear vagus nerve stimulation.

Building on the original Fit’s wearable design and simple controls, Fit Pro adds a conductive silicone earbud electrode—giving you the flexibility to choose the stimulation site that suits your comfort and daily routine.

Use the built-in rear electrodes for neck stimulation, or connect the earbud electrode for auricular vagus nerve stimulation. One device brings both options together, with automatic output switching through the Type-C connection.

What’s New: Earbud Electrode Support

Fit Pro expands the Fit experience with an earbud-style electrode designed for left-ear use.

Its two conductive contact surfaces are shaped to contact the cymba conchae and cavum conchae—the upper and lower bowl-shaped areas of the outer ear—at the same time during ear stimulation.

Soft conductive silicone provides a flexible contact surface, while the shaped earbud and curved support hook help keep the electrode positioned during use. The reusable design makes it convenient to incorporate ear stimulation into your regular wellness routine.

Automatic Switching Between Neck and Ear

The earbud electrode and built-in neck electrodes operate as mutually exclusive outputs. Only one stimulation site is active at a time.

The connection determines where stimulation is delivered, so there is no separate output-selection menu to navigate.

Dual-site means a choice between neck and ear stimulation. The two sites do not operate simultaneously.

Conductive Silicone Earbud for Everyday Convenience

The earbud combines a blue outer shell, black support hook, and soft conductive silicone contact surfaces in a compact design.

• Two ear contact areas: Designed to contact both the cymba conchae and cavum conchae during ear stimulation.

• Soft conductive silicone: Flexible electrode surfaces conform to the intended contact areas.

• Earbud-style placement: A shaped body and support hook help maintain positioning.

• Reusable construction: Designed for repeated use with appropriate care.

• Left-ear fit: The current earbud electrode is designed specifically for the left ear.

The Fit Features You Know

Fit Pro retains the core Fit experience, with controls built directly into the wearable:

• Six wellness modes: Rest, Zen, Balance, Revive, Clarity, and Ease.

• ComfortPulse™ modulation: Shaped stimulation patterns for your wellness sessions.

• Adjustable intensity: Personalize the stimulation level to your comfort.

• Session timer: Choose a session duration that fits your routine.

• Integrated color display: View session information directly on the device.

• App-free operation: No phone pairing or subscription required.

Choose Your Preferred Setup

Neck Stimulation

Use the wearable’s built-in rear electrodes with the earbud cable disconnected. This setup keeps your routine self-contained, without an external ear electrode.

Ear Stimulation

Connect the compatible earbud cable to the Type-C port and use the electrode on your left ear. Output switches to the earbud, while the built-in neck electrodes become inactive.

Follow the supplied instructions for electrode preparation, placement, and session setup.

Frequently Asked Questions

How is Fit Pro different from the original Fit?

Fit Pro adds support for a left-ear conductive silicone electrode and automatic switching between the built-in neck electrodes and the connected earbud electrode.

Can I stimulate my neck and ear at the same time?

No. Fit Pro delivers stimulation to one site at a time. Connecting the earbud cable disables neck output; disconnecting it restores output to the neck electrodes.

Which parts of the ear does the electrode contact?

The electrode is designed to contact the cymba conchae and cavum conchae simultaneously during ear stimulation.

Can I wear the earbud in either ear?

The current earbud electrode supports left-ear wear only.

Do I need an app to switch stimulation sites?

No. Output selection is determined automatically by whether the earbud cable is connected to the Type-C port.

VNTune Fit Pro is intended for general wellness use. It is not intended to diagnose, treat, cure, or prevent disease and does not replace medical advice or treatment.