With over 70 years of old school artisanship, the 4th generation X series drivers are matched to within 0.05 dB of each other help to create the award-winning sound associated with the Grado SR225x headphones. Hand-built in Brooklyn, NY with a leather headband, newly designed housing, and durable cloth wrapped cable, these stylish headphones have a classic look and sound amazing. Key Features Stylish and durable housing Open-back, vented diaphragms are matched to 0.05 dB of each other High-purity, long crystal copper voice coil wire Comfy leather headband 8-conductor high quality cable is durable and flexible Replaceable ear pads Handmade in Brooklyn, New York, USA