Same Great Protection. Slimmer Fit. DEFY Slim BT is an ultra-comfortable electronic earmuff, featuring superior protection and environmental awareness. With active gunshot noise suppression, Bluetooth compatibility, and a background noise-dampening microphone, DEFY Slim BT allows you to align your sights with ease without sacrificing your safety.

• Tactical Sound Control™ Technology enhances your hearing by 8x while protecting you from high-impact noises in under 2 milliseconds.
  
• Ultra-Slim Profile
  
• 21 NRR tested and approved to ANSI s3. 19-1974 | CSA Class B
  
• OSHA-compliant hearing protection
  
• Bluetooth 5.0 connects, and dual-connects, devices 30+ feet.
  
• Lightweight Design at just 310 grams. Adjustable headband designed to fit head sizes ranging from small to large.
  
• Up to 25 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
  
• Noise-Isolating Microphone for clear communication in loud environments
  
• Gel cushion compatible for additional comfort and to seal around eyewear (sold separately)

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