EP0455R Features USB on-ear headphones Super bass sound effect Comes with a 1.5 m cable Built-in microphone for you to freely talk with your friends Allows you to enjoy your favorite music or videos at anytime General Specs Brand & Model OVLENG Q14   Type On-ear headphones Microphone Yes Speaker Diameter 40 mm Impedance  32ohms Sensitivity 102dB±3dB Frequency Response 20Hz-20KHz Max. Input Power 100mW Connector USB2.0 Cable Length 1.5 m  Compatibility PCs，PS3， etc.