Only one side. Sony wh 1000xm5 wireless headset is a high-end wireless noise reduction headset, and its touchpad is located in the right shell of the headset, with only one side. Through the touchpad, users can perform various operations, such as adjusting the volume, skipping songs, pausing/playing music, answering/hanging up the phone and so on. Because the touchpad has only one side, it is necessary to distinguish the left and right earphones when operating to avoid misoperation.