Professionals, and particularly Wideband VoIP users can connect with Most Analogue or Digital System Telephones with a keypad on the base (NOTE: will not work with cordless telephones or telephones with keypads in handset).
This product has wideband audio if it is used on a Wideband VoIP System. With Clearline Audio Technology you will get improved call quality. The product is equipped with Loud Noise Protection, Advanced Echo Management, Background Noise Reduction & Call Volume Equalizer. You will have a benefit of Adjustable Volume Control Dial & Mute Button, and Headset/Handset Selection Switch. Additionally, product has Quick DisconnectTM for connection to “H” Series Headsets.
It comes with lightweight 3 metre Coil Cord and the product requires 2 AA Batteries.