This headset with QD cables is compatible with most of IP Phones except Cisco IP Phone. patibility for PLT-RJ09(01)cable The metal encased headband is wider than normal and the microphone boom is stiffer giving you more durability. Features: Single earpiece offers superb clarity of sound, International standard hearing protection to your ears, Flex Mic boom offers adjustment and accurate position, Click-stop headband for superior fit and comfort, Leatherette ear cushion for all-day comfort Compatable with Mitel IP5001, IP5005, 6863 SIP, 6865 SIP, 6867 SIP, 6869 SIP Phones Eartec Office 510 Headset For Mitel IP5001, IP5005, 6863 SIP, 6865 SIP, 6867 SIP, 6869 SIP Phones In-Ear Headset Great Headset For Home, Work And Contact Centre Plantronics QD Lead - EAR200 QD002 Yealink Headset Mitel-Shop: Mitel 6867 PoE SIP-Telefon ab 118,68€ zzgl. MwSt Structure Features:Comfortable ear cushions , lightweight headband and flexible cord design, as well as adjustable microphone boom ,work to enhance every-talk's good audio quality and all-day's wearing comfort, 330°rotatable MIC pole, 60mm adjustable T-Pad headband 180° rotatable joint of speaker and headband, CE, FCC certificated, 2-Year Warranty NOISE CANCELLING HEADSET: Eartec Office 510 Headset is the best in it's class for a single ear headset. Mitel 6867 9-Line SIP Phone, Refurbished - 80C00002AAA-A Accessories Options:Foam ear cushion is optional, Intercom connecter options:4P4C (RJ9)plug, 2., 5mm ,3., 5mm stereo plug or USB2., 0 plug, M-Volume Controller (with Mic Mute) is optional, QD (Quick Disconnect).