Mitel integrated DECT headset (Docking) - buy at digitec
Headsets for Mitel Phones: Mitel compatible headsets – Headsets4business
Using a cordless headset with the Mitel Console 5540 - Compatible Jabra (GN) wireless headsets
Headsets to Suit Your Mitel Telephone | Headsets Australia
Earhook for Mitel Cordless DECT headsets (5330, 5340, 5360) and Jabra 9300 Series - 9330, 9350 and, 14121-02: Buy Online at Best Price in UAE - Amazon.ae
Mitel compatible BIZ 2470 Mono Ultra Noise Canceling Direct connect headset | For Mitel VoiP phones: 5010, 5020, 5040, 5055, 5140, 5201, 5205, 5207, 5210, 5212, 5215, 5220, 5224, 5230, 5235, 5240, 5250, 5312, 5324, 5330, 5340