In addition to a basic phaser sound, it offers sound variations beyond the scope of a phaser, including auto-wah, ring modulator, vibrato, and uni-vibe-like effects. As you would expect from Empress, the performance is outstanding, and it's packed with features. It has a practical tap tempo, 8 types of auto modes, the ability to connect an expression pedal, and various adjustments from external MIDI signals, offering a wide range of applications (see the manufacturer's website). Also, for those who like it, you can switch to a 2-stage mode, which is rarely seen these days. If you set the guitar to a distorted state in this stage and play chord strokes that match the oscillation width in a uni-vibe-like setting (with a little resonance added), it's a bit cliché, but it increases the impact and sounds incredibly cool. Also, when swaying like tremolo/vibrato in a slow-tempo song, you can fine-tune the intensity using blend and width to create a sound that better suits the song. Alternatively, shuffling at a fast tempo is very difficult to groove, but if you dare to sway it in 2 stages, the rhythm improves and you can completely change the atmosphere. And so on, there are surprisingly many ways to use it, and it helps create the atmosphere of a song. I used the 2-stage as an example based on my preference, but the 4-stage is the same. This is a versatile phaser with excellent content and high quality, and it's not an exaggeration to call it the definitive phaser.