Supports the DECT 1.9 standard wireless technology. Wireless DECT standards vary depending on local legislation. Jabra DECT wireless headsets cover the most recognized DECT standards including European standard DECT and US DECT 6.0..Talk Range feet: Up to 325-Feet Talk range defines how far away you can be from the headset base and still be connected and carry on a conversation.Usage: Designed to optimize the experience of using a Unified Communications client, such as Skype or Microsoft Lync. Connects to a PC and can be used to stream music/sound and for voice calls A wireless headset intended for use with all leading Unified Communications systems. Plug-and-play functionality makes it easy to implement and use, thus saving time on deployment and training.