Headphones - headset, ear, closed construction, 3,5mm Jack, 6,3mm Jack, with volume control, frequency range: 10 Hz-30000 Hz, sensitivity: 98 dB/mW, impedance: 150 Ohm, converter: 40mm, cord length of 3m For good music or talking with friends, it's good to have headphones. These Superlux earphones have a nice ear-pad design that covers the ear nicely, and they are also compact. Their closed design will ensure amazing insulation against annoying background noise. In contrast to other headphones, these have a pleasantly long 3 m cable leading to one ear-pad. The SUPERLUX HD660 headphones are equipped with a 3.5mm jack. With their frequency range of 10 to 30000 Hz, you can rest assured that you won't miss a note with these earphones. The volume of music or videos on these headphones can be regulated with the handy control buttons. The ear pads can be replaced if needed. You will also get a case for safe carrying of these headphones. SUPERLUX HD660 Headphones Key...