The latest version is digital 900 MHz technologies, which provides better transmission than analog because it transmits a digital signal less subject to interference. This technology spreads the signals over multiple frequencies that provide better security, noise reduction, and extended range. The older and more mature version of 900 MHz is analog, consequently it least expensive technology. Plantronics has adopted this technology for their wireless headsets. The price of a wireless headset varies.
Prices primarily correspond to the wireless technology utilized.
The ability to answer or disconnect remotely requires the use of a hook-switch control device, which can also add to the cost of your wireless headset. The Arialphone is the only wireless telephone headset that comes with built-in voice recognition capabilities. The Arialphone is the only wireless telephone headset that comes with software that integrates to Outlook or Outlook express. Wireless headsets are compatible with most business phone systems. The wireless converter takes the place of the headset amplifier.