A:Answer Hi FrustratedCustomer,
The HS45 doesn't have sidetone options in iCUE, but you can enable listening to your device in Windows. Under the Microphone device properties in Windows, you'll want to enable Listen to this Device under the Listen tab. If you'd like assistance with this setting, please feel free to reach out to our support team so we can assist you directly: support.corsair.com
-Brian