This is one of the best features this headset offers.

The only useful features are1

, etc)I don't think the equalizer is a good feature (it's ok) because it forces you to lower the quality of the codec to SBC in order to use it

Amazing sound, great features, comfortable, and only one minor issue

Since most audio at 248k or above is pretty decent already, this feature is meaningless for most people who are not audiophiles, and if you do a web search for "Sony DSEE

Using it passively, which is a nice feature, made the sound quality drop quite a bit

The ambient sound devices function and covering the right earcup to temporarily allow environmental sounds is a useful feature