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B37S Percussion Massager
  • B37S Percussion Massager
  • B37S Percussion Massager
  • B37S Percussion Massager
  • B37S Percussion Massager
  • B37S Percussion Massager
  • B37S Percussion Massager
B37S Percussion Massager
B37S Percussion Massager
B37S Percussion Massager
B37S Percussion Massager
B37S Percussion Massager
B37S Percussion Massager
B37S Percussion Massager

Engineered to meet the demanding performance needs of those serious about muscle recovery, the B37S is in a class by itself. Increased power at lower speeds allows for deeper massage treatment, giving you greater therapeutic benefits.

4.8 (684 reviews)
B37S Percussion Massager
Reactive Force
B37S Percussion Massager
30% Stronger
Brushless Motor
B37S Percussion Massager
Up to 8 Hour
Battery Life
B37S Percussion Massager
6 Locking
B37S Percussion Massager
5th Speed
B37S Percussion Massager
Superior Sound
Lifetime Warranty
Lifetime Warranty Quality guaranteed
Free shipping
Free shipping On all U.S. Orders
U.S. customer care
U.S. customer care 7 days a week
Buy now, pay later
Buy now, pay later Easy payments via Affirm

6 Interchangeable Attachments

Customize each treatment
  • Flat Great for overall use
  • Bullet Pinpoint treatment
including hands feet,
and knots
  • Cone Silicone tip perfect for
targeted treatment near tender and bony areas
  • Round (Foam) Overall use on large
muscle groups
  • Round (Silicone) Low impact - great for recovery and treating sore areas
  • Fork Designed for the spine and neck

Feature showcase: B37S

3 reasons why it's worth the investment

  • Portable and always on-call

    Think of Ekrin as your dedicated stress-reliever, effortlessly banishing tension and pain.

  • Say farewell to tired muscles

    Eliminate muscle knots and regain mobility. Explore the wonders of your full range of motion.

  • Optimize your exercise routine.

    Gear up with the Ekrin to optimize performance. It speeds up warm-up and recovery, keeping you at your best.

Reactive force sensor.
Complete control over your recovery.

Execute precise control over your treatment as the blue light from the Reactive Force Sensor conveniently displays the amount of pressure applied to your massage. Know when you're about to reach the max force for each speed.

5 optimized speeds

Whether you're looking for deep percussive treatment or need to treat sensitive areas, customize your massage with 5 speeds ranging from 2000 RPM to 3200 RPM. Speed 5 is set for variable frequency that alternates between 2400 RPM and 3200 RPM. This is engineered to cause muscle confusion, helping you avoid a plateau in your recovery.

Key features

  • Variable speed

    Automatically alternates between 2000-3200 RPM at speed 5

  • 6 included locking attachments

    Four classic attachments plus two silicone attachments

  • Reactive force sensor

    Conveniently displays how much pressure is being applied

  • 8 hour battery life

    Premium lithium-ion battery

Frequently asked questions

  • How do I use the B37S Percussion Massager?

    Below are some basic best practices when using the B37S Percussion Massager: 

    1. Always turn on the B37S before placing it on the body.
    2. Use speeds 1-3 for muscle recovery and speeds 4-5 for soothing massage and to warm-up muscles pre-workout.
    3. Simply glide the B37S on muscles that need the most attention, and let it do the work for you.  Carefully move up and down the muscle, gradually applying light to moderate pressure as needed.
    4. Remember to breathe and relax to allow your muscles to loosen as the B37S does its job. 

    The B37S Percussion Massager is designed with innovative ergonomics, which includes its 15 degree angled handle.  This, along with the "tower" grip, allow you to hold the B37S in a variety of ways, making it easier than ever to treat hard-to-reach areas like your back.

  • How long should I use my B37S?

    We recommend using your B37S Percussion Massager for a minimum of 15 seconds and a maximum of 2 minutes per muscle group.  Do not exceed 15 minutes per session. Try to maintain 2-3 full sessions per day, depending on desired result.


    Before workouts or physical activity, glide your B37S over desired area for 30 seconds to activate and “wake up” your muscles.


    Reactivate muscles during workout or any activity with a quick 10-15 second session on the muscle group. This re-energizes the muscles by removing lactic acid and promoting maximum blood flow. 


    Gently glide your B37S for up to 2 minutes for muscle recovery post-workout.  This will decrease soreness and decrease recovery time.

  • How does percussive therapy work?

    Tension is one of the main causes for most body aches and pains. The massage treatment from the B37S relieves tension in soft tissue effectively and efficiently.

    Percussive massage overrides pain signals to the brain, increases heat in the tissue, and releases tension.  This is achieved using strokes that create impact between 2200-3200 RPM with applied pressure.

  • What are the benefits of percussive therapy?

    Whether you’re an athlete, a physical therapist, or just need relief from tension and pain, Ekrin Athletics provides a natural approach to improving your physical well-being.  Percussive massage can help athletic performance, promote faster recovery, and relieve tension and pain.

    The B37S Percussion Massager helps with the following:

    • Accelerates recovery & muscle repair
    • Increases blood and lymphatic flow
    • Relieves muscle spasms and stiffness
    • Breaks up scar tissue
    • Improves lactic acid clearance
    • Activates the nervous system and muscles
    • Muscle fatigue, pain, tightness, soreness, and knots
    • Natural stress relief
    • Myofascial release (7x more effective than a foam roller)
  • Who Should Use the B37S?

    The B37S Percussion Massager was designed to perform and stand up to the rigors of professional use.  That said it is also effective and attainable for daily consumer use.

    Many of our customers include:

    • Athletes from all levels 
    • Trainers, physical therapists, and chiropractors
    • Everyday people
  • Can I travel with my B37S?

    Lithium-ion batteries must be stored in carry-on baggage only.  Once on the aircraft, all lithium batteries must be removed from the carry-on bag and kept with the passenger in the cabin.

    Since the B37S has a built-in Lithium-ion battery, it must be stored in your carry-on baggage only.

    Although you are able to travel with your B37S Percussion Massager, it is at the discretion of the TSA officer to allow it through.  If they are unfamiliar with our device, feel free to share our website and social media with them.

  • What is your return policy?

    We have a no-questions-asked 30 day return policy.  If you feel the B37S is not the right fit for you, contact our Customer Care team.

  • How do I register for my warranty?

    If you purchased directly from our website, your warranty has automatically been registered.  

    If you purchased your B37S elsewhere, you will need to register through our Warranty Registration page at


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