RJ9 Headset - Superb Sound Professional Monaural Headset + Cisco Avaya Panasonic Virtual Compatibility RJ9 Headset Adapter Don't Compare This Professional Headset with General Headsets. All Day Wearing Comfort, Compete with Plantronics and Jabra GN netcom High-Grade Headsets for Call Center, Telemarketing, Customer Representative. Multi Year Warranty, 20 Year Proven Quality in The World. Quick Disconnect headset (Cord length 3ft) + Universal RJ9 to QD cord (Stretched length 6ft). Quick Disconnect is an Essential feature for Professional headset. It allows you to walk away without remove the headset. Universal RJ9 code is a plug that can select 8 wiring types, similar to Jabra smart cord GN1200 : virtually compatible MOST RJ9 phone jack. Noise cancelling Microphone to reduce background noise and Static shock protection Super sound feature delivers richer and crispy communication Swiveling receiver with the large ear cushion supports excellent sound deliver.