Stay warm in style with your ISOtunes DEFY Tactical Earmuffs with Bluetooth. Each pair of tactical earmuffs has an automatic power off feature after 4 hours for battery conservation. It comes with a noise-isolating microphone for clear communication in loud environments. These Bluetooth earmuffs use tactical sound control technology that enhances your hearing up to 8x while protecting you from high-impact noises in under 2 milliseconds. The rechargeable battery provides up to 11 hours of connection to any device and DEFY is a AAA battery compatible for up to 22 hours of connection (not included).

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