Kennerton Algiz. For Algiz, driver and housing were made together from scratch, and were carefully matched to each other in the process. Unique high-perfomance dynamic 10mm composite driver delivers unparalleled clarity and precision compared to other headphones available today. For instance, most armature drivers can successfully play only up to 10kHz when used alone. Our driver can play from 20Hz to far beyond 20kHz easily, covering all frequencies human ear can receive. Audiophile-grade cable for best sound experience. Remote-control cable for easy on-the-go use with any smartphone. 2 sound attenuator audio filters to choose from.