Details Wrap around dual ear headset can be worn under helmet or hat 12dB off-axis noise cancellation allows for use in loud environments 2.3 oz lightweight headset comfortable to wear for long periods of time Flexible gooseneck microphone for correct positioning Choice of ear tips, Small, Medium & Large; one pair of each included Item Code CC-70-X4 CC-70-ET-S CC-70-ET-M CC-70-ET-L Technical Specifications Headphone Type: Single driver Frequency Response: 30Hz - 14kHz Sensitivity: 96dB SPL@1VRMS at 1kHz Impedance: 16Ω + 16Ω Input Power: 3mW Microphone Element: Dynamic Polar Pattern: Unidirectional noise cancelling Frequency Response: 200Hz - 10kHz Sensitivity: -80dB 1V/Pa at 1kHz typical Impedance: 200Ω Connector XLR 4-pin female (Neutrik) Clear-Com wiring Cabling: Screened and separately shielded microphone wires, cable not coiled Cable length: 4ft (1.2m) 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 2.3oz (65g)