2.0 Headphone Speaker Diameter: 40mm Headphone Impedance: 32 Microphone Impedance: 2.2K Headphone Sensitivity: 116dB Microphone Sensitivity: -582dB Wire: 1.12M+1M High-quality headphones, mobile phone + computer original cable, universal and convenient connection to mobile phone line Long, its not a hassle to connect the extension cord to the computer