The ER-20s are DIFFERENT than conventional earplugs. They actually reduce the dangerous sound level evenly (using a tuned resonator and acoustic resistor) to preserve the balance. You still hear the blend clearly, "feel" the bass, and are able to distinguish each tone.

Here is a list of several people who benefit from the ER-20 earplugs...

• Aircraft - crews, passengers, pilots
• Athletics - athletes, coaches, spectators
• Construction - carpenters, equipment operators, steel workers
• Emergency Vehicles - EMT's, highway patrol, firefighters
• Industrial - factory workers, students, supervisors
• Leisure - concerts, night clubs, noisy restaurants, sporting events
• Medical - Dental - dentists, hygienists, technicians, surgeons
• Drivers of - heavy equipment, motorcycles, race cars, pit crews
• Musicians - vocalists, musicians, directors

ER-20 Hi-Fi Earplugs The ER-20 Hi-Fi earplugs have a triple flange construction and provide an inexpensive, high-fidelity earplug that can be used in a variety of noisy environments. Low cost 20B attenuation Clarity of sound and pitch Good frequency response accuracy Speech is understood more easily in high level noise Available in a variety of colors Cost: $15.00/pair - Buy Online

ER-20 Ultra-Tech Earplugs The ER-20 Ultra-Tech earplugs have the same acoustic properties and the same construction as the ER-20 Hi-Fi earplugs. The only difference is their color and a retaining cord for convenience. Low cost 20dB attenuation Music is heard clearly Good frequency response accuracy Available in a variety of colors Supplied with matching cord and case Cost: $15.00/pair - Buy Online