ED9-- a bit extreme to define new flagship headset， a patented variable tuning device (patent number: ZL201120401183.6)
Built-in T-cells (patent number: ZL201420488834.7)， a number of technology integration is bound to once again shake the traditional moving coil units in the field. It will give you a new hearing texture， toothless sound， and the sound knot like feeling extremely rich. Whether it is two-unit， three units or headphones， they can not exhibit ED9 knot like texture in terms of the overall sound.
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