If you are using the USB version (C-1U), your computer usually handles the "driver" part automatically, but performance varies by operating system:
Therefore, your search for a “Behringer C1 driver” should actually be a search for the driver of your . behringer c1 driver
If you only hear sound in one ear, ensure your recording track is set to in your software, as a single microphone is a mono source. Are you using a specific audio interface If you are using the USB version (C-1U),