When working in hazardous or high-noise-level conditions, it is important to have the right hearing protection. In many cases, this indicates wearing a headset or earmuff hearing protection device (HPD) with active noise-canceling technology. This analog technology functions by detecting the sound coming into the headset generates signals that are out-of-phase with the offending signals and then cancels them out. This allows any sounds generated within the headset to be understood more clearly (music, radio communications, etc.). Unfortunately, these active noise-canceling headsets have attributes that are problematic.