FeaturesUSB-A connectionFoldable headband & stereo sound outputConvenient volume and mute controlsPlug-and-play simplicityDetachable boom microphoneJoin colleagues on a Zoom call or listen to music through your PC with this Prosound Stereo USB-A Foldable Headset with Detachable Boom Microphone. Built with a foldable headband and a detachable microphone, this compact headset is versatile and perfect for travel.Padded ear cushions and a convenient volume and mute control ensure you will be able to make calls in comfort with clear and professional sound, even in open office spaces.Microphone has a sensitivity of -38±4 dB at 1 KHz (0 dB=1V/Pa). Headphone sensitivity is 106+/-3dB At 1KHz, Impedance is 32 ohms+/-15% and it has a frequency range of 20～2,0000Hz.Microphone Technical SpecificationsSensitivity: -38+/-4 dB at 1 KHz (0 dB=1V/Pa)Impedance: 2.2k ohmsFrequency Response: 30~16,000Hz.Connector: 3.5mm stereo audio plugHeadphone Technical SpecificationsImpedance: 32 ohms +/-15%Frequency Range: 20Hz-20kHzSensitivity: 106+/-3dB At 1KHz Maximum Input power: 100 mW.(1.78V.R.M.S)Connector: USB-A plug