CP0265B Features 3.5 mm on-ear design headphones with stereo sound effect Freely talk with your friends with the equipped microphone Attaches with a 2.0 m cable Freely adjusts the volume General Specs Brand & Model OVLENG V4   Type On-ear headphones Microphone Yes  Sensitivity 102±3dB Speaker Size 40 mm Impedance 32ohms Frequency Response 20-20000Hz Plug Standard 3.5 mm plug Cable Length 2.0 m Compatibility PC Package Details Weight: 280.34 g Size: 19.00*18.5*8.00 cm Package Includes * OVLENG V4 3.5 mm On-ear Stereo Headphones with Microphone & 2.0 m Cable