Designed for classroom environments, the Axus Classroom Headphones offer excellent audio quality and comfort at an affordable price. They deliver a clear representation of any instrument or audio played through them, featuring comfortable ear cups with a padded adjustable headband and a 1.5m cable. These headphones include a 1/4 inch jack adaptor, enabling direct connection to most portable keyboards. Features: Comfortable, padded ear cushions Padded, adjustable head band 3.5mm jack with 6.35mm adaptor Cable length: 1.5m Frequency response: 20Hz - 20,000Hz. Also includes a pair of stereo headphones.