Hybrid Drivers - It has the advantage than the traditional dynamic driver headphones, analytical richly, the sound is detailed. Upgraded Balanced Armarture and 8mm Dynamic Driver R&D Independently - with excellent low-frequency output characteristics, bass be powerful, response be fast, mid frequency be wide, The efficiency of electroacoustic conversion has increased ,high frequency be bright, vocal be clear Newest Crossover Technology - The new frequency division technology makes the sounding connection between DD and BA smoother, complement each other, and reproduce HIFI-grade sound quality.