The LS9500 headphone is a full sized “professional audio” styled headphone built for the classroom. The design patented headband adjusts for small children to large adults with just enough snugness to provide excellent sound isolation, yet remain extremely comfortable. The sound quality rivals or exceeds entry level models for studio monitoring and critical listening, but are substantially more affordable and way more durable. Much care was given to eliminate or reduce the common failure and breakage points of this design type so that it would hold up to shared use in the classroom and computer labs. It comes with two removable cords: Cord 1: 8’ multi-function cord with volume control and a switch for alternating between mono output for more focused audio book listening and stereo output for crystal clear music. Cord 2: 6’ cord with no controls to use your device’s software for volume control.