• 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 and water resistance


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