Features:  * Core audio technology、 high sound reduction bring you the enjoyment of music. * High quality wire material ensure the low-loss transmission. * Humanized design for comfortable wearing. * 3.5mm interface、 compatible with more than 98% digital products. * Mini microphone、 convenient to answer the phone. Specifications:          General Specification             Brand         BYZ             Model         K67             Color         Black、 Sliver、 Gold             Cable Length         1.2M             Wearing Type         In-ear           Technical Parameters             Connectivity         Wired             Conectivity Interface         3.5mm             Receive Sensitivity         93dB\/mW             Impedance         16!#!amp!*!Omega;             Frequency Response         20-20000Hz    Package  Included:                   1!#!amp!*!times; earphone             1!#!amp!*!times; pair of earmuffs