• Tactical Sound Control™ Technology enhances your hearing up to 8x while protecting you from high-impact noises in under 2 milliseconds.
  • Lightweight Design at just 15.5 ounces with a vented headband and memory foam ear cushions.
  • Rechargeable Battery provides up to 11 hrs of connection to any device.
  • AAA Battery Compatible for up to 22 hrs of connection (not included).
  • Automatic Power Off after 4 hours for battery conservation.
  • SafeMax™ Technology limits volume output to 85 dB for all-day, damage-free listening.
  • Bluetooth 4.2 connects, and dual-connects, devices up to 30 feet.
  • IPX4 Durability for sweat and water resistance.
  • 25 NRR tested and approved to ANSI s3.19-1974.
  • Noise-Isolating Microphone for clear communication in loud environments.
ISOtunes Sport DEFY BT comes with a micro USB charging cable.