Firefly Portable Recovery Device
FireflyFireflyFitness & SportsDeal

Firefly Portable Recovery Device

FDA-approved portable neuromuscular stimulation device that increases blood flow by 400% to speed muscle recovery and reduce soreness. 30-hour battery, 7 intensity levels.

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Backed by

Lori GreinerLori GreinerRashaun WilliamsRashaun Williams
As seen on Season 16, Episode 14Mar 21, 2025

The Shark Tank Story

The Pitch

Asked $500,000 for 2.5%

Got $500,000 for 5%

Watch the pitch

The Deal

$500,000 at $10M valuation

Invested by Greiner, Williams

Today

Thriving

$5.5M reported

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