Etymotic Research ER4-P

摘要

Etymotic Research's earphones just may be the first audio product I've reviewed that the user inserts into his or her body. Unlike the 'earbuds' familiarised by the Sony Walkman, Etymotic's ER4-P MicroPro Earphone actually enters the ear canal. Proper insertion results in a 20dB-41dB noise cut, depending on which cushions you use. The result is incredible isolation and an air-tight seal that enables the ER4-P to produce sensational bass.