In-Ear Earphones with Good Noise Isolation < $40
Looking for some In-ear earphones to wear in bed, but need to have good noise isolation. Only needs to be passive noise isolation to keep the sound of the air conditioner out. Mainly used for listening to podcasts, so music quality is a bit secondary to noise isolation. Ideally they would also have a microphone for mobile phone calls.
Currently using some TDK ones from OfficeWorks. They are ok, but I suspect they won't last much longer.
I don't want heavy or hard cords as I will often have my face lying against them.