Grado's first wireless/Bluetooth headphone is both musical and fairly neutral. I admit to being pleasantly surprised by the sound quality. Highly recommended.
http://www.hifiheadphones.co.uk/com...eless-bluetooth-stereo-headphone-review.4533/
http://www.hifiheadphones.co.uk/com...eless-bluetooth-stereo-headphone-review.4533/