Etymotic Research hf3 Noise-Isolating In-Ear Stereo Headphones with Mic - Cobalt

The hf3 in-ear headphones from Etymotic Research provide high-quality performance in a compact and affordable package. The headphones feature precision-matched AccuDriver balanced armatures to provide a better than 85% response accuracy with tight bass, clear treble, and an extremely high output sensitivity.

Highlights
Highly Accurate Sound Reproduction
Balanced Armature Drivers
Noise-Isolating In-Ear Fit
Multiple Types of Eartips
Inline Microphone and Remote
Replaceable Filters
Kevlar-Reinforced Cable
3.5mm Plug

Specifications
Type In-Ear
Drivers High-Performance Balanced AccuDriver Armatures
Frequency Range 20Hz - 15kHz
Impedance 16 Ohms
Sensitivity 105dB
SPL 120dB
Maximum Input Power Not Specified by Manufacturer
Isolation 35-42dB
Connectors 3.5mm Stereo Mini Plug
Cable Length 4' (1.2 m)

MFG: ETYMOTIC
MFG Part: ER23-HF3-COBALT-I