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