The Etymotic Research hf5 are the 5th generation of high end in-ear headphones designed to eliminate outside noise. Each earpiece is made with a changeable filter that stop earwax and debris from entering the earphones and smooth the frequency response of the earpieces. Etymotic recommends changing the filters if the loudness decreases or sound quality deteriorates. HF stands for High Fidelity and Etymotic ensures the headphones live up to their name by testing them with the same technology as used in the production of hearing aids to create an accurate response to the high frequency boost added by the studios in high quality recordings. As well, they use two methods in order to measure noise isolation, the Real-Ear-attenuated-at-Threshold (REAT) and the Probe Microphone Methods which are explained in detail on the manufacturer website. The hf5 is aimed at anyone looking for a smaller pair of earphones with high end noise isolation and sound reproduction.
- Tuned Acoustic Insert Technology
- Compatible with all 3.5mm jacks
- 35-42 dB noise isolation
- Cable Length - 4 ft
- Weight - less than 0.5 oz