It’s not troublesome at all. OnePlus Cloud Ear Z2 has three buttons, volume +- buttons and multi-function buttons, which can control voice assistants, answer calls, music playback, etc. Of course, you can re-pair with a new device after long pressing for 5 seconds, and the volume + - are all in OnePlus’ unique red color, making the headset look very high-end. You might as well search Baidu for details.