Reduce outside noise levels by 25 decibels Includes 1 pair of headphones, 150cm detachable 3.5mm (1/8in) line-in cable, 6.3mm (1/4in) headphone jack adapter, 40cm USB charging cable, instruction insert Red with black foam cushions and padded headband 50mm Dynamic Speaker Mylarcon Frequency Response: 20HZ – 20KHZ