The PH-10R is the ultimate in passive noise reduction. This heavy-duty headset offers snug fitting, dual-sided monaural headphones with a dynamic, noise-canceling microphone for use in high noise environments. The PH-10R offers an Environmental Protection Agency (EPA) rated noise reduction rating (NRR) of 24 dB. Perfect for industrial and concert applications. Available with 4 male XLR connectors.
PH-10R Dual-Sided 24dB NRR Headset (A4M-4 Pin Male Connector), The Bosch Group ADI, Telex