JABRA Evolve 20 MS stereo Headset on-ear 80014071 4999-823-189 Product Description: Jabra Evolve 20 MS stereo - headset Product Type: Headset - wired - USB-C Compatibility: Mac, Windows Recommended Use: Portable electronics, phone, computer - communication Headphones Form Factor: On-ear Connectivity Technology: Wired Sound Output Mode: Stereo Audio Specifications: Frequency Response 150 - 7000 Hz - Sensitivity 93.6 dB Impedance: 32 Ohm Max Input Power: 5 mW Noise Isolating: Yes Microphone: Boom Microphone Technology: Electret condenser Controls: Mute, volume, answer/end Manufacturer Warranty: 2-year warranty