There are two ways to connect a mobile phone to a speaker through USB to play music: 1. If you need a U port connection, just use a USB data cable. 2. On the premise that the mobile phone supports the OTG function, you can use the OTG data cable to connect the mobile phone and the stereo.

The iPhone is a series of mobile phone products equipped with the iOS operating system launched by Apple Inc. on January 9, 2007. As of March 2022, Apple Inc. has released 33 mobile phone products, the latest versions: iPhone 13 mini, iPhone 13, iPhone 13 Pro, iPhone 13 Pro Max, iPhone SE (third generation); iPhone series products The mute button is on the left side of the front of the device; models before iPhone 5 use a 30Pin (i.e. 30-pin) interface, and products after iPhone 5 (included) use a Lightning interface. Models before iPhone X are equipped with a Home button; models after iPhone Touch ID appeared for the first time on iPhone 5s; iPhone 6s and iPhone 6s Plus added 3D Touch pressure-sensitive touch control to the screen for the first time; wireless charging appeared for the first time on iPhone8 and iPhone 8 Plus models, using the Qi (Chee) wireless charging standard.