The Brainwavz HM5 is a closed dynamic circumaural head-phone which appears to be a clone of the Fischer Audio FA-003. There is also another similar clone by Lindy. OEM/ODM manufacturer appears to be Yoga Electronics. Response from owners at the moment suggest that the HM5 / FA-003 / Lindy sound similar/same.
Pre-amble (about me)
I'm a 44 year old music lover. I don't say audiophile - just love my music.