Firefly is a revolutionary recovery device used by professional athletes, Olympians, and weekend warriors. It helps your body to recover faster by increasing blood flow throughout your entire body. Firefly is small and portable, so you can take it with you wherever you go.
firefly sends small electrical pulses to stimulate your peroneal nerve (in your leg) creating a slight foot "flutter" which increases blood flow by 400%.
Increased blood flow means your muscles get more oxygen and nutrients. This helps your body to recover from exercise faster and reduces soreness.