1 7
Kendall 🇨🇦 ★★★★★
Dec 5, 2025

Very satisfied with this device.
Works perfectly.

✓ FREE Ultrasound Gel Included ($14.99 Value)

Relief Neck & Shoulder Tension at Home

$99.99 USD
$99.99 USD
16% OFF Sold out
  • Deep Therapeutic Ultrasound
  • 10–15 Minute Treatments
  • Used in Clinics for Decades
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Free Worldwide Shipping

At 4Brune, we understand you don’t want to wait long for your order. That’s why all orders are shipped free within 1 business day, with tracking.

Who this is NOT for

1. Not for severe injuries that require medical treatment (e.g. torn muscles, fractures)
2. Not for those unwilling to use the device regularly (results improve with repeated use)
3. Not a replacement for professional medical care or diagnosis

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Relieve sore, tight muscles at home

Muscles are meant to contract and relax naturally after movement.

But workouts, long days, stress, and poor posture can leave muscles feeling tight, tense, and uncomfortable.

This tension can build up in areas like the lower back, shoulders, neck, and legs, making it harder to move comfortably throughout the day.

The 4Brune Ultrasound Flex uses targeted ultrasound waves designed to gently warm deep muscle tissue.

This helps promote relaxation, improve circulation, and support temporary relief from everyday muscle tension and stiffness.

Simple 10–15 minute sessions make it easy to support your recovery routine at home.

Support natural muscle relaxation

Tight, overworked muscles can sometimes stay tense longer than they should, leading to soreness, stiffness, and uncomfortable muscle spasms.

Many solutions only provide temporary relief without helping the muscle fully relax.

4Brune’s Ultrasound Flex uses targeted ultrasound waves to gently warm deep muscle tissue.

This helps promote muscle relaxation, improve circulation, and support temporary relief from everyday muscle tension and tightness.

Relief without relying on medication

Muscle discomfort can make everyday movement feel harder, and while medication may provide short-term relief, it doesn’t always help address ongoing muscle tension.

4Brune’s Ultrasound Flex uses targeted ultrasound waves to gently warm deep muscle tissue.

This helps promote circulation, support muscle relaxation, and ease everyday stiffness and discomfort, all from the comfort of home.

Support everyday muscle recovery

Healthy movement starts with relaxed, well-supported muscles and good circulation.

4Brune’s Ultrasound Flex uses targeted ultrasound waves to gently warm deep muscle tissue, helping promote circulation and support natural muscle relaxation.

By easing everyday tension and stiffness, it can help you move more comfortably and stay consistent with your recovery and wellness routine over time.

Already used by physiotherapists

Therapeutic ultrasound is widely used by physiotherapists to support recovery, reduce pain, and improve mobility.

However, traditional treatments can be expensive, time-consuming, and dependent on clinic visits.

The 4Brune Ultrasound Flex brings professional-inspired ultrasound technology into a simple, accessible solution designed for home use.

24/7 customer support

4Brune is available around the clock through our Contact channels, ensuring you can get assistance whenever you need it.