ISOtunes ULTRACOMM Aware User Manual page 2

ANSI S3.19-1974 Table (NRR Table)
Short Eartips
Tall Eartips
Triple Flange Eartips
EN 352-2:2020 Table (SNR Table)
Short Eartips
SNR (dB) = 30 H84 (dB) = 31 dB M84 (dB) = 26 dB
Tall Eartips
SNR (dB) = 32 H84 (dB) = 31 dB M84 (dB) = 30 dB
Triple Flange Eartips
SNR (dB) = 30 H84 (dB) = 30 dB M84 (dB) = 28 dB
L84 (dB) = 25 dB
L84 (dB) = 28 dB
L84 (dB) = 28 dB