DEFY Slim Basic

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  • $45.00
  • Regular price $59.00
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Same Great Protection. Slimmer Fit.

ISOtunes Sport DEFY Slim Basic delivers superior protection in a no-frills, ultra-slim design. Tactical Sound Control™ allows you to hear and control ambient sound volumes, all while protecting you from harmful gunshot noises. DEFY Slim Basic is the ultimate electronic earmuff for distraction-free, high-performance protection.

Please note: this product is not Bluetooth enabled and does not include a microphone for phone calls. If interested in a product with full Bluetooth functionality, see the DEFY Slim.


Backed by:

  • One Year Warranty (if it's our fault we fix it, no questions asked)
  • 30-day Money Back (you won't need this, but just in case)
  • Friendly, US based customer service team


Tactical Sound Control

Proprietary technology that amplifies sounds you want to hear up to 8x their natural volume, while still protecting you from harmful gunshot noises in under 2 milliseconds.

20 dB of Noise Reduction

Most gunshots will register between 150 - 170 decibels. At those levels hearing damage can occur quickly. Combat those dangerous noise levels and shoot safely all day long.

Ultra-Slim Design

At just 289 g, this ultra-slim muff weighs 120 g less than other leading earmuffs. Enjoy all day performance and comfort, while aligning your sights with ease.


Full Product Details

• Tactical Sound Control™ Technology enhances your hearing by 8x while protecting you from high-impact noises in under 2 milliseconds.

• Ultra-Slim Profile

• 20 NRR tested and approved to ANSI s3. 19-1974.

• Lightweight Design at just 289 grams.

• Up to 300 Hr Battery Life with 2 AAA batteries.

• SafeMax™ Technology limits volume output to 85dB for all-day, damage-free listening.

• IPX4 Durability for sweat, water, and dust resistant protection.


ISOtunes Sport DEFY Slim Basic comes with 2 AAA batteries and an auxiliary cable.