Hopefully just an audio balance adjustment.
Try the headsets on another known working computer or audio device.
Try other known working headsets on your computer.
Determine if the balance problem follows the headset or stays with the computer.
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What (if any)audio hardware and software are you using? The software may provide some balance control.
Likewise you can click the small speaker icon usually located in the lower right screen corner.
Right clicking the speaker icon should present a menu with a number of audio related options.
Each option, in turn, leads to a variety of windows, tabs, and properties.
Explore first to determine the current audio configuration.
You can also access audio configuration options by typing "Sound settings" in the "Type here to search box" lower left screen area.
Many options available. Change only one thing at a time and keep notes in case you need to go back and undo some change.