3.5?
Are not. Lenovo Xiaoxin Pad Pro 2023 does not have a 3.5 mm headphone port.
For Xiaoxin Pad Pro 2023 12.7 inch, Lenovo has removed the 3.5 mm jack and only equipped:
* USB-C for charging, data transfer and audio output
* 4 Dolby Atmos speakers
* Bluetooth 5.x to connect wireless headphones
If you want to use 3.5 mm wired headphones, you can:
* Use a USB-C → 3.5 mm adapter (preferably one with DAC if your headphones require it).
* Or use a USB-C/Bluetooth headset.
If you are planning to buy Xiaoxin Pad Pro 2023, I can also advise on a USB-C to 3.5 mm adapter that is compatible with the device.
