What should I look for in headphones for audiobooks?

For audiobooks, prioritize all-day comfort, long battery life, and clear midrange for voices over deep bass — you are listening to speech, not music. Noise cancellation helps in noisy places so you can keep the volume low. Comfortable over-ear models like the Bose QuietComfort 45 and Sony WH-1000XM5 are popular precisely because they stay comfortable through hours of narration.