Special Audio specifications thanks to its neodymium speakers. Jabra PureVoice technology: eliminates background noise. Microphone brace with 360o rotation. Noise cancellation microphone. Ultra resistant. Peakstop technology: eliminates acoustic shocks transmitted through the network. Durable head cable. Ultra soft covers. Brand: Jabra Manufacturer: Jabra Product Size: 18.8 x 14.73 x 6.86 cm Product Description The complete range Jabra BIZ 2400 has been improved: best audio quality, best comfort and best autonomy! Why use a Jabra BIZ 2400? Best audio quality The Jabra BIZ 2400 series has been designed for professionals who work a lot on the phone, as in a call center, or who want a perfect audio quality. These headphones have powerful speakers made of neodymium, which offer a frequency rank very similar to the frequencies of fixed phones and thus allow exceptional sound clarity during the call. Moreover, they possess the Jabra PureVoice Technology that filters background noises and eliminates interference, to improve communication with the interlocutor. Models with omnidirectional microphone are recommended in quiet or not noisy offices. If you work in a very noisy environment, you should use the version with a noise cancelling microphone. Better autonomy Offer maximum autonomy and minimum maintenance cost. The materials are made of surgical steel, the cable is made in Kevlar and is much more durable than other headphones on the market. The model presented by Jabra BIZ 2400 has been deseganted exclusively for traditional fixed telephones.