Westone 4 Quad-Driver Earphone, True-Fit Westone Series

Features: Crush resistant travel case, assorted eartips, 1/8” to 1/4” adapter,
inline volume attenuator and wax loop for cleaning.

Micro-Driver Balanced Armature Technology
- Ultra-accurate four-driver system for the most dynamic sound
  available in a universal fit earphone.

Westone EPIC Cable
- Ultra supple braided design insures comfort and resists tangles
- Robust bifurcation w/slide adjustment keeps cord in place during
  activity
- Over-the-ear cable design offers superior in-ear comfort and isolation
  from mechanical cable noise

Westone True-Fit Technology
- 50 years experience with in-ear applications has yield optimum
  ergonomics and fit
- True -Fit sound port delivers maximum comfort and in-ear coupling
  for dynamic transfer of sound.

Specs:
Sensitivity: 118 dB SPL @ 1kHz
Frequency Response: 10Hz - 18kHz
Impedance: 31 ohms @ 1kHz
Driver: Four balanced armature drivers
Cable: Westone EPIC cable