Recover Faster.
Perform Better.
Travel Easier.
Firefly increases blood flow to ease discomfort, speed recovery, and boost energy—whether you’re traveling, working, or pushing your limits.
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1929 Reviews
I'm constantly using Firefly to help keep my legs fresh after a hard workout.
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Feel ready to go, faster.
Firefly is a revolutionary recovery device that speeds up the body's natural healing by increasing whole body blood flow. It reduces recovery time and boosts performance.
Simply put, it's a way to reduce your downtime.
Here's how Firefly works
Firefly uses OnPulse™ technology to kickstart your body’s natural recovery process to speed up your recovery and reduce soreness.
Firefly stimulates blood flow
Firefly stimulates your peroneal nerve, triggering muscle contractions and setting the foundation for enhanced recovery.
Increased blood flow helps improve recovery
Leg contractions increase blood flow throughout your whole body, delivering the essential recovery fuel to your muscles.
Get back to training, faster
Increased blood flow flushes out lactic acid and delivers vital nutrients, paving the way for a rapid and effective recovery.
Whole body benefits of Firefly
Firefly helps your muscles recover faster, meaning more frequent training. It's portable and can be used on the go, perfect for active lifestyles and ensuring efficient recovery without the time commitment of traditional tools.
Ease Muscle Discomfort
Quickly reduce soreness for faster bounce-back after workouts and activities.
Minimal Time, Maximum Recovery
Get the most out of your recovery with minimal time needed, ideal for those always on the move.
Feel Good Traveling
Improve blood flow and beat travel fatigue, so you feel good when you get there.
Reach New Heights
Train more often with less downtime, helping you reach new personal bests.
Kickstart Your Recovery with the Firefly Starter Packs
Made for new users, the Starter Packs have everything you need to get started on your path to quicker recovery and improved performance.
Frequently Asked Questions
How does Firefly work?
Firefly's OnPulse™ technology uses small electrical pulses to stimulate the peroneal nerve (a nerve in your leg). This increases full-body blood flow. That means more fresh blood and oxygen to reduce lactic acid and soreness, eliminate toxins, and keep muscles flexible.
When and how long should I wear the Firefly devices?
Recommended usage will optimize recovery so you can train harder and perform better. Firefly Recovery is used for warm up (30-60 minutes) post workout recovery (1-4 hours) and travel (duration of travel).
Should I use Firefly during training or working out?
No, it is not recommended to use Firefly during training or a workout. However, as Firefly is a portable device, it can be used when walking, stretching or on-the-go.
Can I use Firefly for upper body recovery?
Absolutely. Since Firefly increases blood flow throughout your entire body, it always functions as a full-body recovery device.
Why should I get a Starter Pack?
Firefly Starter Packs have everything you need to get the full Firefly experience - they also comes at a discounted price.
Starter Packs include Firefly devices, and two accessory straps.
How many Firefly devices do I need?
If you're new to Firefly, we reccomend getting a Starter Pack, which has Firefly devices and accessory straps. This gives you enough time to get the full recovery experience.
If you're restocking, you can save money by buying in bulk or getting a subscription.
Do I need the accessory strap?
We reccomend getting the Accessory Straps (included in the Starter Packs).
The Accessory Strap keeps Firefly securely in place whether you are resting or in motion. Additionally, as the gel-based backing on Firefly devices may become less adhesive after multiple uses, the accessory strap will help to ensure proper stimulation from the device.
How do I use Firefly?
Recommended usage will optimize recovery so you can train harder and perform better.
Firefly Recovery is used for warm up (30-60 minutes), post workout recovery (2-4 hours), and travel (duration of travel).
Simply apply Firefly to the correct location on your peroneal nerve and turn the device on.
For full instructions click here.
How long does Firefly last?
When used as recommended, the Firefly device has a 30 hour battery life. The number of uses will depend on the length of each recovery session (average session is 1-4 hours). Afterwards, the battery is not rechargeable, it can be removed and recycled like any household battery.
Is the Firefly device painful to use?
The Firefly device should not be painful. You will feel muscles in the lower leg contract every second, which causes your foot to twitch (Firefly flutter). It may take a few moments to adjust to the sensation, but the movement is critical to increasing blood flow and recovery. if the sensation is too strong, decrease the level.
How does Firefly differ from muscle stim?
The Firefly is a modified NMES that stimulates a nerve vs. a muscle, it is not a muscle stim or TENS unit. Stimulating the peroneal nerve causes muscles to contract and to increase blood flow. Stimulating a muscle (with traditional NMES) for extended periods of time can cause muscle fatigue. The Firefly safely avoids muscle fatigue that can be caused by TENS. Click here for a modality comparison.
Who should not use the Firefly device?
Individuals with pacemakers and recently diagnosed DVT should not use the Firefly. See the instructions that accompany the device for a full list of contraindications, warnings and precautions. Please see our technical specifications.
Will Firefly work on bent and straight legs?
Many Firefly users find it easier to apply the Firefly to a bent leg as it is easier to locate the fibular head. You need to see a slight foot "flutter" for Firefly to work fully. The setting might need to be adjusted when you bend or straighten your leg. Increase or decrease the setting as needed when changing positions.
Can I wear compression socks while using Firefly?
Yes, you can wear compression socks with Firefly, but research suggests it may not provide extra recovery benefits. A study (Ferguson et al., European Journal of Applied Physiology, 2014) found that neuromuscular electrical stimulation (NMES), like Firefly, significantly reduces muscle soreness—more effectively than compression socks alone. However, combining the two didn’t show any added benefit.