What is Passive Noise Cancellation?
Passive Noise Cancellation (PNC) is the reduction of high frequency noise in the headset speakers by means of the physical design (size, diameter, shape, material) and fit of the headset. PNC blocks out and lowers the level of ambient noise you hear when you wear your headset. To get the best result with true wireless earbuds, it is important that the EarGels create a seal in the ears.
