Driver Type: Dynamic, 40mm with neodymium magnets, Form Factor: Over ear, circumaural, closed back, Element: Electret condenser microphone, Polar Pattern: Bi-directional, noise-cancelling, Sensitivity: -40.5 dBV (1 V/Pa at 1 kHz), Audio Controls: Onboard audio controls, Frame Type: Plastic, Ear Cushions: Soft foam & fabric, Warranty: 02 Years, 6H9B7AA.