For listening to music or talking to friends, it's great to have headphones. The SENNHEISER headphones have a great ear-pad design that covers the ear, but they are also compact. The length of their cable is 1,2 m and connects to one ear-pad. The Sennheiser SC135 headphones connect with a 3.5mm jack. With the frequency range of 20 to 20000 Hz, you can rest assured that you'll hear every note with these headphones. The earphones also include a microphone. You will also get a case for safe carrying of this model of headphones. The SENNHEISER headphones are designed to be compatible with PC.