●Heavy duty robust design, MIL-STD-810F.
●Secure Nexus connection between different headsets and PTT.
●Waterproof: IP57
●Up to Φ50mm large operating area of PTT, suitable for people wearing thick gloves.
●Applicable for firefighters, rescue, industry or who need to wear breath mask.

●Speaker
・Dimension　Φ2.8mm×7.1mm
・Impedance 　240Ω±10% at 1000Hz
・Rated input power 　0.32mW
・Maximum power 　1.28mW for 1 Minute
・Sound Pressure Level　94±3dB/1mW at 1000Hz

●Microphone
・Dimension　　Φ4.0mm×1.75mm
・Sensitivity -38 dB±3dB/1KHz

●cable
・Dimension of plug cable　Φ3mm
・Dimension of earphone cable　Φ1.8ｍｍ

●PTT
・Dimension Φ80ｍｍ×40ｍｍ