Jabra BIZ1900 Mono Brand New Includes Two Year Warranty Product # 1983-820-105 aka BIZ 1920 The Jabra BIZ 1900 Mono features noise cancelling capabilities eliminating unwanted background noise. This headset delivers professional performance and exceptional value and comes with Quick Disconnect plug for immediate connectivity to a wide range of amplifiers and telephone. It increases agent productivity and performance and features 270 degree rotation that supports left and right wearing style. The BIZ 1900 Mono Headset features an Acoustic shock protection against sudden, loud noises which also protect user against sudden loud noises transmitted via the telephone network. It has a great sound quality with traditional narrowband phone systems. This headset is light in weight having sturdy design and is exceptionally durable with future proof design. BIZ 1900 Mono Headset Features Noise-Canceling Microphone Single Earpiece Over the Head Headset Pivoting Boom Arm Mono Sound Lightweight Quick Disconnect