Etymotic ER-9 Clear Filter for Musicians Earplugs, Pair

Etymotic filters feature a flat frequency response that allows musicians to hear their performance accurately while providing hearing protection.

The ER-9 provides flat 9 dB sound reduction through 2 kHz and slopes down to 15 dB at approximately 8 kHz. Ideal for musical situations that may not require as much attenuation as the ER-15 or ER-25 filters provide.