
Do you have these troubles in your life?
Muscle soreness after work or exercise?
Stiff shoulders from prolonged sitting?
Still relying on painkillers or expensive massages?
Muscle pain shouldn’t control your day.
We can help you solve this problem in the most cost-effective, hassle-free, and comfortable way.
1️⃣ Deep muscle relief, anytime at home
2️⃣ Save money vs. expensive massages
3️⃣ Easy to use, no appointments needed
Restore your muscles’ natural balance to ease pain & stiffness
Long hours of workouts, desk sitting, or repetitive strain create tight knots, reduced circulation, and muscle fatigue.
Over time, this imbalance leads to tension, stiffness, and chronic soreness, making even simple movements uncomfortable.
Professional-Grade Relief at Home.
check_circleRecover faster
check_circleReduce inflammation
check_circleRestore flexibility
Whether you're an athlete, office worker, or senior,you’ll move more
This product's multi-impact technology penetrates deep into tight muscle fibers, breaking down muscle knots that restrict movement. This helps restore flexibility, allowing for freer and more comfortable movement, freeing you from daily stiffness.
High-frequency pulses stimulate blood flow and oxygen delivery to sore muscles, flushing out lactic acid and toxins. This helps accelerate post-exercise recovery.
This product uses advanced noise reduction technology, delivering powerful therapeutic effects at a mere 30 decibels—quieter than normal conversation. Therefore, you can easily use it while watching TV, working at your desk, or relaxing before bed, relieving pain without disrupting your daily life.
Total-Body Relief Anytime, Anywhere
Real Results. Backed by You
Over the past 12 months, our company has conducted surveys in the US and UK.
In a survey of 500 users 14 days after the initial screening:
92%
Reported noticeable pain relief after the first session
90%
Experienced improved blood flow and faster muscle recovery within 7 days
94%
Noticed reduced stiffness and tension after 10 days
96%
Experienced greater flexibility and mobility after 14 days
*Results are based on the survey conducted by our social media team on January 21, 2025.
What Our Customers Have To Say
Very good 4.8/5 based on 10,046 verified reviews
FAQ
What's the red light therapy for?
What's the red light therapy for?
Enhances circulation and speeds healing. It's like adding heat therapy to your deep tissue massage
Why 16 heads instead of one?
Why 16 heads instead of one?
Coverage. One head means 40+ minutes and you still can't reach everywhere. 16 heads treat your entire back in 10 minutes, solo.
Is it too heavy with all those heads?
Is it too heavy with all those heads?
No. The dual-handle design distributes weight perfectly. Many users find it easier to control than single-head guns.
How does it compare to professional massage?
How does it compare to professional massage?
One session costs $100+. ReviFlex™ pays for itself in one week, and you can use it daily.
Can seniors use this safely?
Can seniors use this safely?
Absolutely. Start with gentle settings (we have 30 levels). The handles make it stable and controlled.
Is it suitable for women or non-athletes?
Is it suitable for women or non-athletes?
Definitely. The X16 is designed for everyone — athletes, office workers, and everyday users who want to relieve stiffness, soreness, or improve flexibility safely.
How do I use it correctly?
How do I use it correctly?
Choose a massage head, power on the device, and gently glide it across the targeted muscle area. Start with the lowest speed, then increase as needed. Use 1–2 minutes per muscle group (total 10–15 minutes per session). Avoid direct bone contact.
Can I use it daily?
Can I use it daily?
Yes! The Knackle™ X16 is safe for daily use. Most users benefit from 10–15 minutes per day, especially after workouts or long periods of sitting. Regular use improves flexibility and muscle recovery.
Is it loud?
Is it loud?
Not at all. The X16 uses whisper-quiet brushless motor technology — powerful yet nearly silent. You can use it at home, in the gym, or even while watching TV without disturbance.
How long does the battery last?
How long does the battery last?
Fully charged, the X16 provides up to 6 hours of use depending on intensity. It uses a high-capacity lithium battery and recharges quickly via USB-C.