JABRA Evolve2 40 SE UC Mono Headset 80014071 24189-889-999 Product Description: Jabra Evolve2 40 SE UC Mono - headset Product Type: Headset - wired - USB-A Recommended Use: Computer, phone - communication Headphones Form Factor: On-ear Connectivity Technology: Wired Sound Output Mode: Mono Audio Specifications: Frequency Response 20 - 20000 Hz - Sensitivity 117 dB Max Input Power: 30 mW Noise Isolating: Yes Microphone: Boom Microphone Noise Cancelling: Yes Microphones Included: 3 Controls: Play/pause, volume, next/previous track, mute, answer/end, flip-to-mute Software Certification: Optimised for UC Manufacturer Warranty: 2-year warranty