SoundSync operation

Instructions a bit lacking, can figure nearly all but am not understanding its mention of Siri access. Top is play/pause. Middle ?, Lower is on/off?, left right is forward / back. Siri?

Thank you for your questions. We are sorry for the lacking of information on the manual and we will try our best to improve it. For the MFB (multi-functional button) button, we can power on/off the item by holding the button for 3s. If we need to wake up Siri, we can hold the same button for 1s (long press means power it off). The left and right is for skipping tracks. If you need further assistance, please feel free to contact us via Thanks