The Firefly uses neuromuscular stimulation of the common peroneal nerve to increase blood flow in your lower leg by around 300%.

As a neuromuscular stimulator, it does not fatigue the muscles making it perfect for post-exercise recovery or use to help recovery from injury quicker.

By increasing the blood flow, metabolic waste produced in the cells during exercise is removed faster, hugely reducing painful DOMS (Delayed Onset of Muscle Soreness) that occur 24–48 hours after heavy training sessions, allowing you train harder and more often

In addition to recovery, the Firefly is also great for improving blood flow and preventing DVTs (Deep Vein Thrombosis) during long distance travel or for those with tendencies to have circulation problems, such as diabetics, hospital patients and elderly people.

As an approved medical device with loads of research, you can be confident the Firefly is safe and effective.

The new innovative firefly™ device is a simple, convenient and time efficient electronic device designed for top athletes to accelerate sports recovery and improve performance.
Portable with no leads or wires and worn behind the knee, the firefly™ device powered by revolutionary OnPulse™ neuromuscular electrostimulation (NMES) technology, is used by athletes immediately after high exertion exercise to increase blood circulation to muscles of the lower leg.

It is one-size-fits-all with clinically proven sports recovery benefits that reduce the delayed onset of muscle soreness (DOMS) within 24 hours meaning athletes recover quicker and improve their performance.

User Review
''I'm always looking for that added advantage over my competition, with firefly™ I've found it"
Nick Baldwin, Professional Ironman athlete