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.
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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
Earplugs: Up to 16 hours
Charge Station: 20 earplug charge cycles