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Mystim · Vibrating Toys

Mystim Thin Finn eStim Urethral Sound - Silver

first reviews coming soon

The Mystim Thin Finn is a silver urethral sound designed for electrostimulation, measuring 9.84 inches in total length with an insertion depth of 5.25 inches. Crafted from aluminum, this eStim device offers a unique combination of internal stretching and electrical stimulation for adventurous users. It requires a separate eStim current device to operate.

This urethral dilator distinguishes itself by integrating electrostimulation directly into an internally used sound. Unlike standard dilators, the Thin Finn features two distinct poles separated by insulation, allowing for direct application of eStim currents for a tingling, pulsing, or teasing sensation. Its smooth, rounded tip facilitates easier insertion, enhancing the overall experience.

Meet the Mystim Thin Finn eStim Urethral Sound - Silver — engineered to bring deep, rumbly vibration exactly where you want it. Multiple modes, properly powerful, and finished in body-safe materials so it stays kind to skin.

Built from stainless steel — phthalate-free and easy to keep clean.

Ships discreetly with full instructions and a body-safe care guide.

$95.59

✓ in stock · ships same day if ordered before 4pm (Mon-Fri)

Discreet packaging 30-day returns Same-day dispatch (before 4pm Mon-Fri)
Materials stainless steel
Features 1
    • Delivers electrostimulation sensations internally — via two distinct poles separated by insulation.
    • Facilitates insertion with a gently rounded tip and smooth transition — for comfortable urethral exploration.
    • Offers a total length of 9.84 inches — with 5.25 inches designed for internal use.
    • Constructed from durable aluminum — in a sleek silver finish.
    • Pairs with eStim current devices like Cluster Buster or Tension Lover — for variable stimulation.
    • Can be pre-heated or cooled — to enhance sensory feedback during use.
Details construction · use

Adventurous individuals exploring advanced sensation play, particularly those interested in combining internal stretching with electrostimulation. Users who enjoy precise control over their arousal and are comfortable with internal devices.

The Mystim Thin Finn urethral sound offers a unique electrostimulation experience with its dual-pole design and aluminum construction. Its 9.84-inch total length and 5.25-inch insertion depth provide deep internal sensation, enhanced by variable eStim currents.

Specifications materials · dimensions · care
Q&A 1
Q
How do I use the electrostimulation feature?
To activate the electrostimulation, you'll need a separate eStim current device, such as the Mystim Cluster Buster or Tension Lover. Connect your device to the Thin Finn's poles to begin the electrical stimulation, which can be varied for different sensations.
Is it difficult to insert?
The Mystim Thin Finn features a gently rounded tip and a seamlessly smooth transition between its poles, designed to make insertion into the urethra easier with practice and lubricant. It's recommended to take your time and use adequate lubrication.
What is the warranty on this sound?
This urethral sound comes with a one-year warranty, providing assurance for your purchase against manufacturing defects.
A
Shipping & discretion always plain · always discreet

Ships in a plain, unbranded box — no logos, no clues. Your statement shows a neutral descriptor.

Free US shipping over $59, same-day dispatch (before 4pm Mon-Fri) before 4pm, and easy 30-day returns if it's not the one.