The Solo 2 Wireless ($299.00) are great. Got mine last week. They are supposed to be the same 'cans' as the non-wireless Solo 2 ($199.00). A full range of sound... very natural.
The mixr headphones are advertised as DJ headphones, whereas the Solos are advertised as providing a better listening experience. I would choose the Solos because the mixr headphones might be less comfortable than the lighter Solos (the bigger brother Pro model clamps around the head rather tight, whereas the Solo's bigger brother Studio model is far more comfortable in the long run).