What type of headset will work with the DuraFon-UHF handset? EnGenius Admin Updated April 05, 2018 01:32 Follow The connector on the handset is M1 (2.5mm). Related articles What impedance is the headset jack on the DuraFon? Durafon UHF FAQ Which EnGenius phone systems does the DuraFon-UHF handset work with? Can the DuraFon-UHF handset work with a repeater system? Can you program each line on UHF/PRO/SIP handset to a specific extension? Comments 0 comments Please sign in to leave a comment.