OTTO’s NoizeBarrier® Micro high-definition and rechargeable electronic earplugs offer unsurpassed situational awareness and clear communication, while providing hearing protection from loud noises. The dual-mode NoizeBarrier® earplugs offer active hearing protection as well as hearing enhancement for extremely effective sound localization and detection.

  
Up to 40 dB of impulse noise protection
  
Up to 15 dB adaptive noise attenuation
  
Hearing enhancement mode – amplifies soft sounds up to 5X
  
Natural hearing for safe sounds
  
One-button touch pad, 2-mode operation
  
Rechargeable with up to 16 hours of continuous use
  
Earpiece and case IP67 water resistant
  
Charging status LCD panel
  
18 month warranty
NRR:  28 dB(Foam Tips); 23 dB (3-Flange Tips)
Frequency Response:  40Hz - 16kHz
Transducers:  Balanced armature receivers (speakers), Wide bandwidth, low-noise MEMS microphones
Battery Performance:
Earplugs:  Up to 16 hours
Charge Station:  20 earplug charge cycles