A versatile choice: works with PCs and mobile phones via Bluetooth A duo speaker headset designed for use with IP telephony and featuring noise cancellation technology. The Jabra BIZ 2400 headsets are part of a comprehensive family of headsets that raises the bar on corded headset quality and performance. The Jabra BIZ 2400 series features a cascade of improvements that pushes the envelope for the levels of audio quality, comfort and durability necessary for dealing with the special requirements in contact center and office environments. The Jabra BIZ 2400 headsets are configured for business and contact center professionals. Hand-made neodymium speakers provide maximum frequency response, resulting in greater call clarity, fewer misunderstandings and better customer service all round. The headsets are available with different microphones and noise-canceling systems to match any work environment.