Etymotic ER20XS High Fidelity Earplugs Size:Standard (Clear) - Removable lithium-ion battery

- Removable lithium-ion battery

Silicone Gel Cooling earmuffs

Ear Seals are built for long lasting performance

5 mm listen only stereo input (limited to 82 dB) for connection to external devices

The target curve that Etymotic is using for tuning our IEMs differs slightly from the Harmon preference curve

Etymotic ER20XS High Fidelity Earplugs Size:Standard (Clear) - Removable lithium-ion batteryEtymotic ER20XS High Fidelity Earplugs are the highly awaited next generation of Etymotic's industry leading ETYPlugs High Fidelity Earplugs for musicians. Etymotic ER20XS High Fidelity Earplugs feature patented Hi Fi technology that lets you hear all frequencies clearly, just as if you had no plugs in, but at a lower volume level. Features New, discreet design Performance matches Etymotic's original high fidelity earplugs developed for musicians