Good design , excellent sound quality and high-quality material ensures a long service life to your product. A special mounting system allows the headphones to be comfortable to wear. Extra Bass System. The set includes two cables:- One of the bay mini jack and microphone compatible with smartphones and tablets,- The second USB port and microphone compatible with PCs and laptops.Built-in microphone Banded Comfortable headband. Modern design. High quality workmanship. Technical data:- Speaker diameter: 40mm,- Impedance: 32 Ohm- Sensitivity: 106dB +/- 3dB- Frequency response: 20Hz - 20kHz- Input power: 100mW- Connector: mini jack, USB