Depends on what you mean by "Good." Wireless sound quality will never be as technically good as wired sound quality when played from the same source. I say technically because the differences can be imperceptible to humans, so your best sound quality will probably come from the wired IEMs. If you care about the convenience and stresslessness of wireless, I'd recommend buying a proper set of buds designed from the ground up to be wireless, rather than jury-rigging a (comparatively) cheap set of wired IEMs.