The ATH-ANC500BT QuietPoint® wireless over-ear headphones use proprietary active noise-cancelling technology to provide a comfortable listening environment in areas with high ambient noise. The headphones’ 40 mm drivers supply powerful sound reproduction with exceptional clarity, whether operating over a Bluetooth wireless connection or a standard wired connection using the included 1.2 m (3.9') audio cable with 3.5 mm (1/8") stereo mini-plug. Memory-foam earpads provide excellent sound isolation and amazing comfort, and the earcups fold in to make the headphones more compact and easy to transport.