The iphone13mini does not have a dedicated headphone jack, so if you want to connect wired headphones, you can use the USB Type-C port to connect. That means the headphone jack and charging jack can be shared.
How to connect a wired headset for iphone13mini
1. Buy a 3.5mm headphone jack converter on Apple's official website.
2. Insert the lightning connector of the converter into the charging port of the iPhone13mini;
3. Then insert the connector of the wired headset into the 3.5mm interface of the converter head.
You can also buy wired headphones with a lightning connector so they plug directly into the charging port of the iPhone13mini.
The iPhone13mini is indeed not equipped with a headphone jack, because Apple has no longer equipped with a 3.5-inch headphone jack since iPhone7 in 2016, but instead uses a lightning port for charging as the audio output. The headphone cable equipped with a lightning port is also equipped with a Lightning port, because the 3.5-inch headphone jack cannot be waterproof. So Apple had to cancel the headphone jack.