Firefly T2 Recovery Device Pair

What it is

Firefly is a wearable neuromuscular stimulation (NMES) device that stimulates the peroneal nerve below the knee, triggering gentle calf and foot muscle contractions that boost blood flow up to 400% — the same circulatory benefit as walking, without taking a step.

Key benefits

• Boosts blood flow up to 400% via gentle nerve stimulation
• FDA-cleared, wire-free, fully portable
• Up to 30 hours of run time per device
• Works while you sit, travel, or sleep
• Used by 1,300+ professional and college sports teams

Who it's for

Athletes recovering between training sessions. Frequent travellers wanting to combat leg fatigue on long flights or drives. Desk workers and anyone sitting for extended periods who wants better circulation without getting up.

How to use

Peel the device from its adhesive backing. Place just below the knee over the peroneal nerve. Press the + button to turn on, then adjust intensity until you feel gentle, comfortable contractions in your foot. Use during warm-up (30-60 min), post-workout recovery (1-4 hours), overnight, or for the duration of travel.

What's included

• 1 pair of Firefly T2 devices (up to 30 hours of use each)

Specifications

• Technology: Neuromuscular electrical stimulation (NMES), targets peroneal nerve
• Run time: up to 30 hours per device
• Wire-free, adhesive-backed
• FDA-cleared

Warranty

Contact KUUALA for manufacturer warranty details.

Caution

Do not use if you have a pacemaker or other implanted electronic device, are pregnant, or have a history of blood clots or deep vein thrombosis without consulting your healthcare professional first.

Frequently asked questions

What is Firefly used for?
Boosting circulation to speed recovery, reduce soreness, and combat leg fatigue during travel or extended sitting.

How is this different from a TENS unit?
Firefly stimulates a nerve rather than a muscle directly, triggering natural muscle pumps without causing muscle fatigue.

How long does one device last?
Up to 30 hours of total use — enough for about two weeks of daily training recovery.

Can I wear it while active?
Yes, Firefly is designed to work while you move, unlike compression boots that require you to stay still.

Are the knee straps necessary?
No, the adhesive backing holds the device in place. Straps (sold separately) add extra security for very active use.