Press and hold the circle power button for 3-5 seconds. This will be located on the LEFT arm of the neckband. We recommend having one or both ear tips in your ear to listen to the audio commands. Continue to press and hold until you hear the audible voice stating, “powering on.” If this is your first time powering on the headphones it will automatically go into pairing mode in which you will hear the audio voice prompt stating “looking for device”. Make sure that the device you are attempting to connect to is in the Bluetooth search mode and within range. UA | JBL Flex should appear on your device within 3-8 seconds. Once you choose this option on your discoverable devices, it will connect and the voice prompt will state “Connected. “ To power off the headphones, press and hold the circle power button for 2-3 seconds or until you hear the audible voice state, “Powering Off”