Amazon.com: Mitel Wireless DECT Headset for Mitel MiVoice 6930, 6940 Phones | This Headset is only Compatible with 6930 and 6940 Mitel Models | mitel Part #51305332 : Office Products
Mitel Wireless Headset DECT with Charger 50005522
Axtel ELITE Duo Headset Package for Mitel 6900 Series IP Phones – Shop4Tele
Mitel Cordless Headset w/Charging Cradle (50005522) America's Leading Telecom Supplier