Mitel Compatible VXI Wireless V150 Bundle with Remote Answering | For Mitel Digital and VoIP phones: 4400, 5200, 5300, 5400, 6800, 7400, 8500 series phones | SuperSet and SX series | 4422, 4425, 5040, 5055, 5140, 5201, 5205, 5207, 5210, 5212, 5215, 5220, 5224, 5230, 5235, 5240, 5250, 5312, 5324, 5330, 6865, 6869, 6867, 6863, 7434, 7433, 7466, 8500, 8520, 8560, 8600 Mitel Compatible Bundle 2 items: Includes VXI Wireless Headset and Remote Answerer device for Mitel phones Range up to 300 feet away for maximum mobility Up to 10 hours of talk time - For all day usage and never miss a call. Low-cost, affordable, commercial-grade headset - from the makers of BlueParrott headsets Mitel Compatible Phones: For Mitel Digital and VoiP phones: SuperSet and SX series | 4422, 4425, 5040, 5055, 5140, 5201, 5205, 5207, 5210, 5212, 5215, 5220, 5224, 5230, 5235, 5240, 5250, 5312, 5324, 5330, 6865, 6869, 6867, 6863, 7434, 7433, 7466, 8500, 8520, 8560, 8600.