Review of Sennheiser HD 450BT powered by the Slant community.
"Overall, the Sennheiser HD 450BT are excellent headphones with no perceivable sound leaks. Just be aware that the built-in microphone is not up to par with the sound quality the headphones deliver".
Read review: 8 Best Headphones the Don’t Leak Sound in 2023.
SpecsUpdate
Ranked in these QuestionsQuestion Ranking
Pros
Pro No sound leaks
Pro ANC
Active Noise Cancellation.