In the words of Walrus Audio:

Strap into the co-pilot seat and join Lillian on a sonic journey. Leaving
nothing behind but clean, puffy white trails of whirling, pulsating and
whooshing analog Phase effect. Viewers from below admire in a trance as
it transforms the air into a unique and mesmerizing moment. The Lillian
is a true bypass, all analog, multi-stage Phaser drawing inspiration
from her cousin Julia.