I am considering getting the Brainwavz M2 to pair with the iphone 4.
I do not have a portable Amp atm.
Here are my questions:
How much do they isolate? I do not want total isolation for safety in the street (hearing cars) and so I can answer the phone at work.
Do they isolate too much for such tasks?
Also, do the M2 need an amp or are they good without an amp from the iphone 4?
Please suggest other units for me to consider too. Cannot cost more than $70, prefer $50-60.