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Mine's definitely not that sophisticated fans. Just some old and lousy ones. Hmm... in that case definitely there are some problems here. I dont get any difference with normal earphones. Or at least i dont feel it. But i'll keep trying....

Thanks mackie. Gives me some hope But wat if you are in the MRT or on the bus and when ppl in front of you talk?

Thanks! A good description there. Gives me a picture to compare with. But in that case, isnt it the same as the normal earphone? hhehe... using the office comp now. Lousy one I assume (dunno wat's a ADDA or a thermaltake ). The CPU unit sounds like it is about to die

Thanks for the replies. Really appreciate it. Its my first time using isolated earphones actually but I dont feel any significant difference from the normal earphones. I mean I can actually even hear the sound of the CPU fan that is situated next to me!!! The only difference is i can now hear my own breathing and the sound of the wind blowing my earphone wire which is a step back for isolation (more noise and no reduction of noise)

I think i did push it deep enuff. I pushed it in until there is only the rounded part of the earphone left outside. Can define your 'good' definition? I just want an earphone that I can set the volume and dont have to change in whenever i walk into a different environment. Currently, I still have to increase the volume whenever I go into a bus or the mrt.

Sorry to post my problem in my first post, but i cant seems to get a good isolation when i use my newly bought ex-71. Many of you in this forum claimed that this earphone is able to provide good isolation but when i wear it, i dont get that 'oh, its so quiet' feeling In fact, i can still hear the sound from my tv or my pc which is very dissapointing. I tried using all 3 types of sizes provided by them but none of them seems to give a good isolation. Really really hope someone can help me here. Dont know if I wore it wrongly or i expected too much from the earphones. If i dont get it to work, i'm think i'll have to sell it away