How do I enable ANC or Ambient Aware on the JBL Tune Flex?
Hold either earbud for 2 seconds to toggle between ANC and Ambient Aware modes. However, advanced controls including ANC and Ambient Aware must first be enabled by connecting your JBL Tune Flex to the JBL Headphones App. (Page 8)
From the official Jbl Tune Flex Earbuds manual, page 8
Have a follow-up question?
Answers from the official manual.
Common questions