The Best Acoustics for K810i?

[bibia]

it works both for k800 n k810.

and it won't break ur HW. only ur ears! hehehe...
i recommend u not to set it too loud.. b'coz the phone's speaker or ur earphone speaker may damage.
but, if u connect it to other device that has a volume control, just set ur phone about 75%, n then ur device (e.g: car's head unit or tape) set as u like..
just make sure the sound's perfect n comfort w'ur ears..., n ur speaker..

sorry 4my bad english.

edit:
i forgot to tell u, that peter hifi is the perfect audio driver i ever tried..
if u miss it, find it here