FAQ

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How long should I wear the firefly™ devices?

Suggested wear time is 2 to 4 hours per session, with 4 hours to maximize recovery. Please refer to our website for guidelines on specific wear times. Recommended usage will optimize recovery and get you ready faster for your next training session, game, or race.

When should I wear the firefly™ devices?

  • Post-workout recovery
  • During in flight travel
  • When sitting for long periods of time

Should I use firefly™ during training or workout?

No, this is a post-workout recovery product. However, as firefly™ is a portable device, it can be used when walking, stretching or on-the-go.

Why is the Knee Strap important?

Knee Straps keep firefly™ devices comfortably and 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 knee strap will help to ensure proper stimulation from the device.

How long does the firefly™ work?

When used as recommended, the device has an estimated battery life of 24 hours. Each firefly™ device provides 6-12 recovery sessions, depending on the length of each recovery session (suggested 2-4 hours).

Is the firefly™ device painful to use?

Using the firefly™ device should not be painful when used at the correct level. However, 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 this sensation, but this movement is critical to increasing blood flow and recovery. If the sensation is too strong, you can decrease the level. Please refer to the "How to Use" page for more information.

How do I turn off the firefly™?

Press and hold down the (-) button for 3-seconds to turn off your device. Watch the "How To" Video to learn more about the use of the firefly™ device.

What is the difference between the new firefly™ T2 and the original device?

The T2 is a new and improved version of the original firefly™ device. It is more intuitive to use, more comfortable to wear with a longer, more pliable strap, and has a more consistent battery life.

How long do I wear firefly™ during travel?

We suggest using the firefly™ for the length of travel to promote blood flow during flight.

Can firefly™ be used on other parts of the body?

The device is specifically meant to be applied on the peroneal nerve to increase blood flow from the lower extremities to the heart (systemic blood flow). firefly™ increases lower extremity microcirculatory blood flow by 400%. We have not researched our technology on other nerves in the body to increase blood flow.

How does firefly™ differ from Muscle Stim?

The firefly™ is a modified NMES signal that stimulates a nerve instead of a muscle. firefly™ is not a muscle stim or TENS unit. By stimulating the peroneal nerve specifically, firefly™ causes muscles to pump and therefore increase blood flow. Stimulating a muscle for extended periods of time can cause muscle fatigue. The device safely avoids muscle fatigue by stimulating a nerve.

Is firefly™ similar to other recovery technologies?

firefly™ is a unique, portable device that increases blood flow and improves recovery. While other technology such as pneumatic compression sleeves can increase blood flow, firefly™ is portable which allows for on-the-go, enhanced recovery – anywhere, anytime.

Can I sleep with the firefly™ device on?

There is no detrimental effect to sleeping with the devices on. However, as quality sleep is essential for optimal recovery, if the devices are disruptive to your sleep, you should lower the settings or turn off the devices completely.

Can I wear the firefly™ device in the shower?

No. The firefly™ device is not designed to be used in the shower as it is not waterproof.

What is the correct level of stimulation?

At the correct level, you should see a discernible outward movement of the foot (the firefly™ "flutter"). If you only see muscle twitches or movement in the lower leg and not the foot, then you should increase the level by pressing the (+) button or adjust the placement of the device. Watch the "How To Use" Video and view our step-by-step instructions to learn more.

Are there any precautions for using the firefly™ device?

Individuals with pacemakers and recently diagnosed DVT should not use firefly™. See the instructions that accompany the device for a full list of contraindications, warnings and precautions.

Do you have a return policy?

In the unlikely event that you are not satisfied with your purchase, you may return your firefly™ devices within thirty (30) days of the delivery date. All returns and exchanges are subject to the conditions in our Return Policy Guidelines.