Etymotic ER20 ETY High Fidelity Ear Plugs Colour_Transparent The volume at your ear

The volume at your ear will not exceed 82 dB making Impact Pro safe for all day wear on the job

Charging time: 3 hours

Ear Cushion - PVC/PUR-E (Polyurethane)

while they look like

Etymotic ER20 ETY High Fidelity Ear Plugs Colour_Transparent The volume at your earThe ER20 ETYPlugs High Fidelity Earplugs use a proprietary tuned resonator and acoustic resistor to replicate the natural response of the ear canal. Sound is reproduced unchanged, as the ear would hear it, only quieter. They reduce most noise to safe levels while preserving the lucidity of sounds. Traditional foam earplugs do not compare with high fidelity EtyPlugs. The well known bright colored foam plugs muffle sound by reduce mid range and high