With 82 dB noise limited in-ear and in-ear voice pick up microphone, smartPlug™ allows wearer to clearly pick up speech from inner ear canal. SENS™ technology enhances speech and suppresses noise, enabling users to communicate safely in high-noise environments, while effectively maintaining 360° situational awareness. Offering disposable foam or silicone ear tip options, smartPlug™ also provides up to 31 dB NRR level of protection. Unit runs on rechargeable batteries for up to 15 hours.