The glasses sit comfortably through the many setting options. But what is an absolute no-go: The glasses are so charged that it attracts every speck of dust from the environment. Countless cleaning tests (according to running water. Instructions) were not successful. After a short time the glasses were full of dust again. I had no glasses at previously, no cheap glasses of a..i or L..l. Had she actually returned, if I had not broken out of sheer rage: - ((
