Sound meets style with smartphone playback controls for life on the go. More than your basic pair of over-the-head headphones, the Sony MDR-ZX310AP headset delivers rock-solid audio performance, integrated microphone for hands-free calling and media playback controls for convenient operation. The integrated microphone and multi-function control button make the MDR-ZX310AP the perfect companion for your smartphone.The large 30mm driver units coupled with ferrite magnets will accurately reproduce a broad, dynamic frequency range.Swivel Earcups- The slim, swivel and folding style earcups stow away for compact portability.Pressure Relieving Earpads- The lightweight, adjustable headband with swivel ear pads is designed for comfort so you can enjoy extended listening sessions without fatigue.Y-Type cord- The traditional Y-type cord design helps reduce the chance of tangles while the 4-conductor gold plated, L-shaped plug ensures a good connection.