Other products by ISO tunes Sport
  • Item #:  IT-40
Reg. Price: $59.99
Regular Price: $49.99
On Special: $42.49 ends 12/31/2022
Save: $7.50 (15%)
3 units available
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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 ISOtunes Sport 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™ 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.

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