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).

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.

Accessory Straps keep Firefly devices comfortably and securely in place, especially when you are in motion. As the gel-based backing on the devices may become less adhesive after multiple uses, the accessory strap will help to ensure proper stimulation from the device.

When used as recommended, the device has an estimated battery life of 30 hours. The number of uses will depend upon the length of each recovery session.

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.

Press and hold down the (+) button for 1-second to turn the device ON.

Press and hold down the (-) button for 3-seconds to turn OFF your device.

We suggest using the Firefly for the duration of travel to promote blood flow and avoid tired legs. The Firefly device can safely be worn or carried through TSA security.

The device is specifically meant to be applied on the peroneal nerve to increase systemic blood flow. We have not researched our technology on other nerves in the body.

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.

The Firefly looks like a muscle stim but is similar to pneumatic compression. Both modalities increase blood flow. The Firefly is unique as it moves 3X more blood, is fully portable, and mobile. This allows for on-the-go recovery anywhere, anytime. Click here for a modality comparison.

It is safe to sleep with the devices on. However, quality sleep is essential for optimal recovery; if the devices are disruptive to your sleep, lower the settings or turn them off.

No. The Firefly device is not designed to be used in water as it is not waterproof.

At the correct level, you should see an outward movement of the foot (the Firefly "flutter"). If you only see muscle twitches in the lower leg but not the foot, increase the level by pressing the (+) button or adjust the device placement. It is optimal to wear the Firefly at the lowest setting that delivers a “flutter”.

Individuals with pacemakers and recently diagnosed DVT should not use the Firefly. The firefly device is not intended to be used on children [under the age of 12]. See the instructions that accompany the device for a full list of contraindications, warnings and precautions. Please see our technical specifications.

The Firefly device is reusable during the 30-hour life of the battery and can be used for multiple recovery sessions. Afterwards, the battery can be removed and recycled like any household battery but cannot be replaced. The Firefly device is not rechargeable at this time. We are looking at ways to extend the life of the product and make Firefly rechargeable.

If you’re not satisfied with your purchase, you may return unopened and unused Firefly products within 30 days of delivery. All returns are subject to the terms outlined in our Return Policy.

Yes, Firefly has been clinically validated to improve recovery. Please review our clinical studies. and also read testimonials from professional athletes and athletic trainers in our Reviews.

Please see our technical specifications or our instructions for use in English, French, or Spanish.

It is best to store/transport your Firefly in cool, dry conditions.  If possible, avoid leaving in a hot car or other extremely hot or humid location to keep the hydrogel in optimal performance condition.

After a few recovery sessions, you may see a loss of adhesion of the Firefly gel. Some of this may due to skin particles or hair attaching to the surface of the gel. It can also be due to the loss of moisture from the gel. You can rehydrate the gel by sprinkling a little water onto the gel or lightly misting the gel with water. Do not add too much water as it could have the opposite effect and damage the gel. It is safe to sprinkle water on the firefly device, but do not submerge it in water. 

If the device does not detect that it is properly attached to a leg (for example if it is turned on before fitting or becomes detached) it will turn off automatically after 4 minutes.

To turn on the firefly device requires the button to be pressed for around ½ second and released. This makes it unlikely that it can be turned on accidentally.

Free Shipping:

Your Firefly devices will be sent USPS Ground Advantage from Southern California.

We aim to ship your order within 24 to 48 hours M-F, and on Monday if ordered over the weekend.

Rush Shipping:

We aim to ship rush orders the same day when orders are placed before 1:00 PST. Orders placed after 1 pm PST will ship the next business day and weekend rush orders will ship on Monday. Saturday delivery is not calculated in shipping estimates, so when ordering please calculate your shipping speed accordingly.

The firefly device is not intended to be used on children [under the age of 12].