Macaw GT100s hifi with mic in-ear earphone black GT100S according to different types of music, emphasizing the music to replace the mixer nozzle to achieve the idea sound peformance MIM - metal injection molding process. headphone molding accuracy up to  1.3%, the product thickness is less than 0.5mm Cable length 135CM, containing 18 * 4 oxygen-free copper and 200D ballistic silk, slim smart appearance, anti-pull, long-life using. Standard 3.5mm headphone plug, can be used for most of the mainstream Hifi equipment, maximize protection for lossless audio output