The KZ ED9 with microphone headphones with meticulous design of dual driver acoustical structure. The bass is abundant, the sound field is vaster than normal headphones. Designed with a memory wire technology, the in-ear headphones make it easier to keep moving, providing a locked-in fit Valve independent sound channel The valve avoiding the sound wave interference from each driver. To protect the sound is not distortion from the driver. The two drivers in the same housing, easily to cause the sound wave interference. The ZS1 have the improvement than ordinary dual driver headphones. Built independent sound channel for each driver, the sound will not conflict The accurate frequency divider for each frequency The meticulously regulation fractional frequency circuitry, for the driver characteristic. For each driver characteristic, meticulously calibrate the frequency divider. The treble is clearer, the bass is steadie The 8mm bass boost driver & 6.8mm treble driver, vigorous of each frequency The midbass and treble driver unit have a rich, vigorous performance at bass, midrange and treble. The vertical structure dual driver headphone, the bass is restrained. The general human cavum conchae diameter is 11mm, the single driver will not be large than 5.8mm. Specification Drivers: 8mm+6.8mm Cable: 3.9ft (1.2m) 108core long crygen oxygen-free copper cable Acoustics: 98dB and 16ohm Plug type: 3.5mm gold-plated jack at 90 degree angle Weight: 0.75oz (21g) Package Content: KZ ZS1 with microphone headphones Eartips: Small, Medium & Large (3 total)
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