Active Hearing Protection headset with built-in communication capabilities, including: • Two ear muffs with padding and noise attenuation foam • Ear cup height adjustment system for optimal wearing position • Flexible microphone attached to the left muff • Down Lead Cable with anti-tearing, LEMO connecting plug (green). Operates with an MSA Push-to-Talk (PTT) module enabling connection to the PMR radio. Connection through an anti-tearing LEMO plug with color codification. • PTT module with Yellow connector: non ATEX system • PTT module with Green connector: ATEX system (for use with approved ATEX radios only) Microphone: • Noise cancelling electret, 100Hz-10kHz, sensitivity -61 dB (nominal) at 50% humidity • Loudspeaker: 32 Ω, 100Hz-20kHz, max power 100mW • Material: Cup: PC/ABS, Cushion: Synthetic leather • Down lead Cable: Fire retardant, shielded cable • Battery: 2xAAA batteries, Duracell, Varta, Energizer (ATEX versions), • Surrounding sound amplifiers: Omnidirectional, sensitivity -38±2dB, Max input 110dB S.P.L • Operation Temperature: -20°C to +65°C, humidity < 98% Approvals: • EMC performance: ESD/EMI: 10 V/m • Fully watertight – equivalent to IP67 • ATEX (when used with an ATEX certified PTT module) • ATEX level: II 2G Ex ia IIC T4 • SNR value : 26 dB / H=26 / M=23 / L=18 Connection with a wide range of brand and types of radios is possible.