A:Answer Hi, I found an expert test that showed the following results (Source: RTIngs.com):
Overall Attenuation : -26.06 dB
Bass : -13.24 dB
Mid : -19.62 dB
Treble : -45.64 dB
Self-Noise: 21.55 dB
The isolation performance of the Jabra Elite Active 65t is good. In the bass range, where the rumble of airplane and bus engines sit, they achieved almost 13dB of isolation which is above-average. In the mid-range, important for blocking out speech, they reduce outside noise by more than 20dB, which is very good. In the treble range, occupied by sharp S and T sounds, they isolate by more than 45dB, which is excellent.
From personal experience, these have blocked out all outside noise when desired with moderate volume. The app also has a "Focus Mode" that will play various ambience sounds like white noise, pink noise, waterfall, and numerous other sounds to drown out the outside world. I like this feature when I don't want to listen to music but I don't want to hear the outside world either.
