The SM1P-Ex smart Helmet/Hard Hat mounted Headset attaches to most Helmets/Hard Hats that do not have a full brim and provides features and benefits to improve safety, reliability, and efficiency. Intrinsically safe Ex: The SM1P-Ex headsets provide clear communication via wired or wireless capabilities as well as face-to-face communication while still protecting hearing and awareness of the surrounding work environment. For explosive environments that require ATEX and IECEx certification. The SM1P-Ex series is the next generation, intrinsically safe headset with customer focus and hazardous environments at the forefront of this robust headset design to enhance safety and communications for improved efficiency in high noise and hazardous workplace environments. Cable connection to a Two-Way Radio available (cable sold separately: SRCK61XXCC01 series); Features: Compatible with industry-leading intrinsically safe two-way radios via wired connection or Bluetooth; Bluetooth - Connect to intrinsically safe mobile devices (HFP, HSP and A2DP profiles) via Bluetooth for conversation and audio streaming; Programmable ‘in-ear’ Volume Limiter: Limit ‘in-ear’ exposure to 82 dB(A); Up to 23 dB NRR; Improved Short Range for headset-to-headset communication (Range approx. 50 meters or 164 ft); SENS Technology - remain aware of surrounding noises and hazards with 360° situational awareness; Face-to-face conversation in high noise (No need to remove your headset or move to a quiet area), SENS Technology enhances speech while suppressing background noise to a safe level; Clear communication up to 120 dB noise levels with Noise-Cancelling boom mic; VOX capable; Built-in rechargeable (lithium-ion) battery with up to 24-hour battery life and 4 hour charge time; Rugged lightweight design; Available in headband, behind-the-neck, and helmet styleUSB for programming allows simple configuration of the headset and software updates. Intrinsically Safe Ex: (ATEX/IECEx/UL/CSA) certifications.