The FUSE headphone is a testament to AERIAL7s commitment to merging headphones with fashion. The FUSE continues the evolution of the AERIAL7 Sound Disk System. The Sound Disk was originally released as the ultimate beanie speaker system and can now be snapped into this on-ear, lightweight, retro style headphone. The FUSE frame is a combination of polycarbonate and stainless steel. The minimalistic design of the headphone features indexed ball bearing adjustment for precision fit and delivers the highest quality sound reproduction.