October 18, 2020
Etymotic Research ER4SR Studio Reference In-Ear Earphones for $159.99 + free shipping
That’s the lowest price we could find by $131. Buy Now at Adorama
Features
- balanced armature drivers
- 45-ohm impedance
- detachable cable
- includes replacement filters, zippered case, and assortment of eartips
- Model: ER4SR