Which noise-cancelling headphones have the longest battery life?

Among these picks, JBL Tune 770NC claims up to 70 hours and Soundcore Q20i and Beats Studio Pro both advertise around 40 hours, all longer than Sony's 30 hours or Bose's 24 hours. Verified-purchase reviewers and Reddit threads generally confirm the JBL and Soundcore battery claims hold up in real use.