No, vents on faceplate are just cosmetic. These are DT8 from brand-that-cannot-be-named. It's 2+2 hybrid with Knowles BA's. My favourite chi-fi iem so far for <$50. It is v-shaped, but tuning is almost perfect. No ear-piercing treble, solid bass with texture, decent sub-bass rumble, sound-stage and imaging are excellent for a $50 iem.