Razer Hammerhead USB-C wired headphones extension cord

USB-C is at best unreliable when it comes to dongles and extension cords. As a teacher I need to walk around using the mic feature on my Razer Hammerhead USB-C wired headphones and i need to know what 6 -12 foot usb-c male/female extension cords work with the audio and mic on razer phone and pc's. I will not use bluetooth or wifi headsets as these are also unreliable and drop signal usually due to computer hardware problems. The rca jack for older wired headphones work with all headphones.

Thanks for your help!