Sennheiser HD 569 Closed Back Headphones with 1-Button Remote Mic 506829 ———— Contents: Headsets, Cables, Box. Used Tested Working Condition. Still in good condition. Description Sennheiser are the successor to the popular HD 500 series. Excelling in versatility, the headphones come with a 9.8 cable with 1/4 plug for home use, and a 3.9 cable with a 1-button remote mic and 1/8 straight plug for managing calls on mobile devices. Featuring Sennheisers proprietary transducer technology, the headphones have an Ergonomic Acoustic Refinemen