Sony MDR-E755 Acoustic Twin Turbo Earphones

Sony Acoustic Twin Turbo Circuit for deep bass sound. Neodymium magnet for powerful bass and clear treble sound Silent cap prevents sound leakage Specifications: Type: Open air, dynamic. Driver units: 16mm, dome type. Power handling capacity: 50mW. Impedance: 16 at 1kHz. Sensitivity: 108 dB/mW. Frequency response: 12-22,000 Hz. Cord: 1.0m with stereo mini plug. Mass: Approx 6g (without Cord).