Cons:
> Display readability in low light conditions
For sound:
Use Sennheiser CX 55, due to the abundance Basslastigkeit and sound (without FullSound), I use the EQ-setting "Classic" and am very happy with it. My old Sansa sounded even better, but it has unfortunately also hung like so many other people and no longer works :-(
Highly Recommended because square, practical, good.