Details Over-the-head design Flexible gooseneck microphone positioning Leatherette earpad Dynamic microphone 100Hz to 14kHz earphone frequency response Boom Rotation ON/OFF switch for quick microphone muting Fully serviceable Item Code CC-28-X4 Technical Specifications Headphone Type: Closed-back Driver: 27mm diameter Frequency response: 100Hz- 14kHz Sensitivity: 114dB ±3dB SPL@ 1kHz Impedance: 320Ω ±20%; at 1kHz typical Input Power: 100mW Microphone Element: Dynamic Polar Pattern: Cardioid Frequency Response: 200Hz-10kHz Sensitivity: -61±3dB at 0dB =1V/1Pa, at 1kHz Impedance: 200Ω ±20%; at 1kHz typical Connector XLR 4-pin female (Neutrik) Clear-Com wiring Cabling: Screened and separately shielded microphone wires, cable not coiled Cable length: 5ft (1.5m) Environmental Temperature: -10 ±3°C (14° to 37°F) to 55 ±5°C (131° to 41°F) for 48 hours Humidity: 40 ±5°C (104° to 41°F) to 90-95°C (194° to 203°F) relative humidity for 48 hours Dimensions Dimensions Packaging: 6.3 x 8 x 2.4in (WxHxD) (160 x 205 x 60mm) Weight 3.1oz (88g) without connector 3.5oz (99.2g)