The Jabra BIZ 2400 is a Monaural Headset that offers wired USB connectivity to PC/Softphones and wireless Bluetooth connectivity to Smartphones, tablets and other Bluetooth enabled devices. The Jabra BIZ 2400 features a Neodymium speaker that provides high fidelity, crystal clear audio. The noise-cancelling microphone effectively blocks out unwanted noise from the work environment and the built in IntelliTone technology protects users from acoustic shock. Key components of the Jabra Biz 2400 are built from surgical steel and the cord is made from reinforced Kevlar. This headsets has been designed for everyday use, maximising self life and minimising maintenance costs. Features: Wireless DECT Headset Crystal Clear Calls 2496-829-104 Specifications: Dimensions: H:6.0 x W:16.0 x D:20.0 cm Colour: Grey Guarantee:2 years Material: Plastic Model Number: 100010322