With low distortion and a frequency response of 16Hz -20kHz, deep bass as well as crisp highs are easily reproduced. These comfortable, durable and lightweight headphones will offer long term performance, satisfaction and comfort. The rotating ear-cup allows for variable positioning including single sided or shoulder rest wearing and the extra long (over 13 feet) non -tangle cable allows you to move about freely. The unique collapsible design offers maximum flexibility for storage and transportation. Packaged in a stylish gift box and loaded with accessories; carry bag, additional cloth ear-pads, and standard gold mini plug connector with gold ¼" (6.3mm) adaptor, the CORTEX CHP-2500 Professional Monitoring Headphones are the ideal choice for any quality-conscious audio professional.