Achieve better performance and faster recovery with improved whole-body circulation. Used by Olympians, weekend warriors, and professional athletes, Firefly is a revolutionary new way to enhance recovery by increasing full-body blood flow. Unlike traditional recovery devices, Firefly doesn't tie you down with wires and bulky equipment. It's designed to fit into your active lifestyle. First time using Firefly? Upgrade to the Starter Pack: The Starter Pack has everything you need to get started with Firefly, at the best value. How It Works: Firefly delivers electrical pulses to stimulate the peroneal nerve in your leg, triggering muscle contractions that boost blood flow. This enhanced circulation helps reduce muscle soreness and get you back to your active routine quicker. Details: Each Firefly device delivers 30 hours of recovery treatment (suggested recovery time of 1-4 hours based on training intensity). Most users prefer to use Firefly with accessory straps. The accessory straps help to keep Firefly in the optimal position for maximum benefit. The battery is not replaceable / rechargeable. Why use Firefly: Reach peak performance Recover faster, get back to training Save