Superlux Professional Monitor Headphones Black Edition Semi-Open HD681-AIR

[About clocks that synchronize time via radio waves] The function of clocks that synchronize time via radio waves only works in the Japanese area. Please be careful. This model has the same basic performance as the HD681, but comes with newly developed silicone ear pads in addition to the conventional ear pads. Format: Dynamic, semi-open type Driver: 50mm dynamic type/neodymium magnet Frequency characteristics: 10Hz to 30,000Hz Sensitivity: 98dB SPL/mW Impedance: 32Ω Maximum input: 300mW Cable: Length: 2.5m, 3.5mmΦ stereo mini plug Conventional vinyl leather ear pads are attached to the product when the product is delivered and opened. You can replace them with silicone ear pads according to your preference.