If earphones cannot be used directly with the Xiaomi 17 Ultra, please refer to the following explanation:
1. The Xiaomi 17 Ultra does not support the direct connection of analog earphones.
2. The device uses a digital audio output interface for wired audio accessories.
3. You can use USB digital earphones that support digital audio transmission.
4. Alternatively, you can connect analog earphones through an analog-to-digital earphone converter.
5. External analog microphones can also be used through compatible adapters.