The Mitel Wireless DECT Headset for Mitel MiVoice Phones is compatible with 6930 and 6940 phones only. This wireless headset allows you not to feel tethered to your desk while you’re on a phone call. Experience the freedom of staying connected while you roam around your desk and areas around you. Requires MiVoice Business Release 8.0 SP1 or higher. Key Features Crystal clear conversations with HD audio so lifelike, it sounds like you’re there Talk all day with up to 8 hours of talk time, easily recharge through the charging base attached to the phone Noise cancelling microphone Wireless connectivity to the Mitel phone, allowing for increase in productivity, employees can share, take notes, collaborate or work along during calls End users can install the DECT headset, simplifying and speeding deployment Charging point powered directly via MiVoice 6930 / 6940 expansion port or PKM expansion port In the box: Mitel DECT Wireless Headset Mitel Integrated Headset Charging Cradle Headband