The CM-i5 Audio Headset is designed to work with wireless packs that provide bias power. Its patented design utilizes in-earphones for lightweight comfort and provides excellent noise isolation in moderate to high noise environments. This slim-line design allows for incredible ease in switching between three listening modes: left, right, or left and right to create the desired audio mix. The in-earphones are detachable and replaceable making it even easier for service replacement or to personalize with your own earphones. At a weight of only 1 ounce, it is a mere fraction of other binaural headsets. Equipped with 4-Pin Female XLR.Main Features:In-ear design eliminates fatigueCondenser noise-cancelling microphone12dB off-axis noise rejectionWeighs only 1 oz.Detachable and replaceable earphonesKink-free cable designEven works with iPhones and iPadsPatentedSpecifications:Mic Element Type: Back Electret CondenserMic Pattern: CardioidMic Directional Characteristics: Condenser Noise-CancellingMic Frequency: 100Hz – 10kHzMic Noise Rejection: -12dB off-axisMic Sensitivity: -47dB 1V/PaMic Output Impedance: 1500 (at 1kHz)Earphone Speaker Type: Single DriverEarphone Sensitivity: 96dB SPL@1VRMS (at 1 kHz)Earphone Output Impedance: 16Earphone Housing: Molded plastic with detachable male MMCX connectorCable Length: 4 Feet (1.2 Meters)Weight (excluding connector): 1 oz.Connector Options: XLR-4F, XLR-4M, XLR-5F, XLR-5M, 3.5mm TRRS plug, M-1Boom Flexibility: Bendable to 90Included Accessories: Storage case, foam windscreen, belt clip, collar clip, silicone ear tips, headband sizerCertifications: RoHS compliantCE Labeling: Labeled CE compliant per directive 2014/30/EU