Head protection - Communication Gentex AHNR system (Aircrew Helmet Noise Reduction) Lightspeed helmet integrated ANR-System Lightspeed Zulu 3 ANR-headset Lightspeed wireless ANR-headset TANGO Lightspeed Delta Zulu ANR-headset CEP Noise protection system WCEP Wirefree Noise protection system Gentex AMP headset UME Cobra noise canceling microphone GLOBAL-SYS wireless comm-system Airlink 3085 Microphones for Aviation MILIEARS custom-molded CEP earplugs