Genuine Etymotic Black Foam Eartips (7 pairs) for the ER4 MicroPro Earphones.
Note: Black foam eartips for ER4 are NOT interchangeable with any other Etymotics Earphones And Headset models.
Compatible With:
Etymotic ER-4B (Binaural)
Etymotic ER-4P (Portable)
Etymotic ER-4S (Stereo)
