The Mi 13 does not have a headphone jack because it adopts the design concept of wireless headphones to pursue a simpler appearance and a more convenient user experience. With the development of wireless headphone technology, more and more mobile phone manufacturers have begun to remove the headphone jack, making the phone thinner and lighter, and providing more space for other functions and components. In addition, wireless headphones also provide more freedom of movement and better audio quality, meeting the needs of users for music and calls. If you need to use a wired headset, you can connect it via a adapter or Bluetooth adapter.