and Test Tones
Average price : $15 a pair.
NRR stands for Noise Reduction Rating. It is a standardized measure expressed in decibels (dB), and represents the overall attenuation offered by the earplug. The higher the NRR, the stronger the attenuation. Differences in the NRR of less than 3 dB between earplugs have no importance in practice.
ΔF represents an important factor for musical applications, as it measures the standard deviation from a spectrally flat attenuation between 60Hz and 16kHz. The smaller the ΔF, the higher the fidelity. ±3dB is virtually inaudible and can be considered as the very best one can get.
|At Home||•||Won't block noise.|
|On the go||•••||Won't block noise, but will protect your hearing.|
|Industry||••||Won't block noise, but will protect your hearing.|
|Music||••||The focus of the High Fidelity plug, though the highest frequencies could have been better preserved.|