KZ ESX Special Edition Dynamic Driver HiFi Earphones with Mic Color:Blue From the updated packaging

From the updated packaging

PATENTED DYNAMIC DRIVER - The four-layer voice coil brings a stronger driver

these earphones feature a lightweight build and ergonomic design for maximum comfort

the EA1000 utilizes a 10mm Dynamic Driver paired with Passive Radiator configuration

there is on-off switch on both of the mouse and keyboard for more energy saving

KZ ESX Special Edition Dynamic Driver HiFi Earphones with Mic Color:Blue From the updated packagingFeatures 10 YEARS OF AUDIO EXCELLENCE The KZ ESX is the company's special anniversary earphone as it celebrates a decade of success in the audio industry. With this, they combined all their experience in creating an IEM that is excellent inside and out. 12MM CRYSTAL DIAPHRAGM DYNAMIC DRIVERS With the new generation 12mm super dynamic drivers, the KZ ESX provides powerful bass, without compromising the mids and trebles. The sound is detailed and clear,