The Jabra Evolve 20 UC mono is a professional headset designed mainly to improve conversations. Premium noise cancelling microphone eliminates background noise so your voice can be heard more clearly.Optimized for Unified Communication with USB adapter that enables easy integration with PC. Built for comfort with foam ear cushions. Jabra Evolve 20 UC Mono is one of many Headsets & Microphones available through Office Depot. Made by Jabra.