Sony MDR-ZX110AP Wired On-Ear Headphones.Product SpecificationsDriver Units: 30 mm dynamic dome drivers for a balanced sound profile.Design: Lightweight, on-ear profile featuring a convenient swivel folding layout for easy travel storage.Connectivity: Standard 3.5mm wired analog connector cable.Built-in Microphone: Features an integrated inline remote and microhpone control node for answering hands-free phone calls.Frequency Response: Covers a wide audio spectrum from 12 Hz to 22,000 Hz.